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🎧 Elevate your soundscape—where premium audio meets unstoppable battery life.
The Sennheiser M4AEBT Momentum 4 Wireless Headphones deliver industry-leading 60-hour battery life, adaptive noise cancellation, and signature audiophile sound with 42mm drivers. Featuring Bluetooth 5.2 with aptX Adaptive, customizable sound profiles via the Smart Control Plus app, and a lightweight, foldable design, these headphones are engineered for professionals who demand premium audio quality, comfort, and seamless connectivity throughout their day.









| ASIN | B0B6GHW1SX |
| Additional Features | Lightweight, Noise Cancellation, Microphone Included, Foldable, Integrated Equalizer, Fast Charging, Adjustable Headband, Built-In Voice Assistant |
| Age Range Description | Adult |
| Audio Driver Type | Dynamic Driver |
| Battery Average Life | 60 hours |
| Battery Charge Time | 2 hours |
| Best Sellers Rank | #1,425 in Electronics ( See Top 100 in Electronics ) #94 in Over-Ear Headphones |
| Bluetooth Range | 10 meters |
| Bluetooth Version | 5.2 |
| Brand | Sennheiser |
| Brand Name | Sennheiser |
| Built-In Media | Charging Case,Ear Gels,Charging Cable,User manual |
| Cable Features | Without Cable |
| Carrying Case Weight | 567 g |
| Color | Black |
| Compatible Devices | Smartphones, Computers, Other Devices with Bluetooth Connectivity |
| Connectivity Technology | Bluetooth 5.2 |
| Control Method | Voice |
| Control Type | Voice Control |
| Controller Type | Bluetooth |
| Customer Reviews | 4.0 out of 5 stars 13,937 Reviews |
| Ear Placement | Over Ear |
| Earpiece Shape | Over Ear |
| Enclosure Material | Plastic |
| External Testing Certification | Nao aplicavel |
| Form Factor | Over Ear |
| Frequency Range | 6 Hz to 22 kHz |
| Frequency Response | 22 KHz |
| Global Trade Identification Number | 00810091274309, 04260752330435 |
| Headphone Folding Features | Over Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | Over Ear |
| Impedance | 470 ohm |
| Item Weight | 293 g |
| Manufacturer | Sennheiser |
| Model Name | MOMENTUM 4 |
| Model Number | 509266 |
| Noise Control | Adaptive Noise Cancellation |
| Number of Items | 1 |
| Series Number | 4 |
| Specific Uses For Product | Music |
| Style Name | Wireless Headphone |
| UPC | 810091274309 810091270431 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Manufacturer |
| Wireless Technology | Bluetooth |
E**D
The best for me, and I tried a few
I wanted a pretty nice set of bluetooth over the ear noise canceling headphones. I specifically waited for Black Friday so I could get a nice discount. I bought four different sets of headphones that were in my budget to try them all. I kept these sennheiser momentum 4 over the other ones. I returned the other three which were the Sony 1000 XM5, the Bose QuietComfort ultra and the Bowers & Wilkins Px7 S2e. All of these had a similar price when not on sale. I was quite surprised that I kept the Sennheiser. I really thought I'd be keeping the Bowers and Wilkins based on some of the reviews I've watched. For the type of music I listen to and the ways I will be using these headphones these were just the best. The app is solid and has lots of nice options and allows for the kind of customization I was looking for. The fit is perfect for me. Although so were the Bowers & Wilkins. But the sennheiser's battery life and sound profile along with the nice noise canceling, not the best noise canceling but really good, are what won it over for me. A real 60 hours of battery life is just incredible. That means the average person probably wouldn't have to charge these but once a month! They also came with a really nice case that's slim and easy to throw in a backpack or bag. I'm not sure why other people have issues with the touch controls, they work perfect for me. And the sound quality for the type of music I listen to which is mostly 80s and '90s metal is phenomenal for Bluetooth headphones. I have a few sets of really nice wired headphones and IEM's and these are quite surprising how good they are. A friend of mine has the bose and I've let him try these. He understands why I pick these over the bose now that he's heard them. The cherry on top for these headphones though is that they are phenomenal when you're making phone calls. It doesn't matter how loud or windy the environment is that you're making your call in, the person on the other end has no idea as it's as clear as it ever could be when using Bluetooth. I am really amazed how well they work in this regard. Bluetooth headphones are very subjective when trying to tell someone what is recommended. And if I wouldn't have tried these four I would not have believed how much of a difference there is in the sound profile, comfort, apps, and noise canceling. If you're going to spend some decent money on a set of headphones I really recommend buying a few sets or at least going to a store where you can try them first. I know that's hard to do as most places don't let you try before you buy, so that's why I bought all four and returned the three I did not choose. I've used them with my Hiby DAP, my pixel smartphone and my Lenovo tablet as well as my Sony TV. All of them work fantastic and the connection was quick and easy. I like the fact that I can set up different sound profiles in the app based on what I'm using the headphones for. I have one for podcasts which makes voices sound clear and precise. I have another for movies with the extra bass turned on for the impact of movie soundtrackcs and the punch for explosions and such. I also have another for my favorite kind of music and I have one for watching YouTube videos. I'm not trying to convince anyone to buy these, I'm just telling you my experience with the forehead phones I purchased and why I chose these. Everyone is different, so what's best for me is not necessarily what's best for you.
P**A
Unbelievably good
Absolutely incredible. Mind blowing. By far the most effective active noise reduction. I didn't realize just how noisy my house was until I started using these things. Utter silence. And the sound quality is by far the best I've ever heard in any headphones or headset. Bass is so tight that some drumstrokes feel like someone is physically tapping on the cans themselves. Rumbling or deep bass is also phenomenal. I do really appreciate good sound but I'm not an audiophile and don't have a lot of ten-dollar technical words to throw around so my description might not be all that helpful. Speech or dialogue sounds like actors sitting talking in the room with me. Everything from synth and bass-heavy dance music to grinding, snarling metal has a level of detail and depth that totally new to me and I've been listening to music for over fifty years. The best way I can put it is that the sound quality is so outrageous it's really beyond my ability to fully appreciate. I use these cans for exercise, for watching movies, watching TV, and just listening to and watching music videos on my phone, multiple PCs, and my iPad. The headset pairs with all of them and moves between them with no effort or any issues whatsoever. The battery life is nothing short of phenomenal. I use them every day and have only had to charge them maybe once a week or so. All I can say is that I practically stole them using a combination of gift card and Amazon rewards plus a little cash but for the quality, I'd gladly pay the full price for them.
C**R
DO NOT BUY - HEADPHONES BRICK IF BATTERY DISCHARGES TO 0%
UPDATE - BRICKS IF POWER DRAINS - DO NOT BUY!!! This is an update to my previous review. These are a passable set of headphones evaluated on audio quality. And since I wrote my email below, Sennheiser actually fixed the app to turn off some of the terrible touch features I described in my original review below. But I just replaced my old unit that wore out. But the new units brick if you let the power drain. If the battery fully discharges on these units, you will never be able to get them turned on again. Even worse if you google and chatgpt this, it is a known issue. Do not buy these headphones. It's ridiculous that the manufacturer has these on the market. My research reveals they know about this issue. ----- I have owned at least five pairs of Sennheiser headphones, three in this very line, and it's hard to understand how they get worse instead of better. I ignored the questionable reviews on here thinking people were being overly fussy about audio expectations, but the problems with this product are varied and not what you would expect. Whereas many bad products don't live up to your expectations, these headphones work so poorly and cause so many problems that you can expect them to rob your time and continually cause you aggravation and issues on a daily basis. The fact that I am even taking time out from my busy schedule to write a review speaks to just how terrible these things are: - Audio quality is decent and about what you would expect in a mid-range set of headphones (this is not an audiophile product). I do notice that there is no bass boost feature that previous versions had that I liked. The decrease in audio quality is disappointing, but I probably could have lived with it, as I think the intended application for these phones is being out and about. But that's just where the issues begin... - The real problem with this Momentum line is there is no continuity and improvement with the features. I would expect the designers to be learning from their mistakes and adding improvements with each generation. Instead, each new version has a wildly different approach, and in the case of this model, they have decided to introduce tons of "smart" features, because isn't that just the thing to do these days, regardless of whether it does anything "smart" to enhance the experience. To be clear, I am referring to the array of "automated" features that I detail below. - Most features are automatic and cannot be turned on and off. They claim they can. There is a bluetooth phone app. But the things you can control there are limited. And what can be controlled is worthless, because the headphone constantly lose the connection and settings with the app, so there is no persistence, and you will have to go in again and again to control things that can be only controlled and only in the app. - There is a touch-sensitive pad on the outside of the right headphone that sounds like a great idea, but is a curse to plague your every move. The intended functions of changing volume or tracks, etc. is pretty inconsistent. But anything that touches the pad is going to do something random. If it's raining, your hat touches it, your hair brushes it, you pull your hoodie up, anything is going to do random things to the controls to interrupt your experience. - Even worse are the features apparently intended to anticipate what you want based on movements. If you slip the headphone off one ear for example, it stops the music. Sometimes when you put it back over the ear, it starts again - most of the time not. If you turn your head left or right, or turn around to look backward (which I often do working with these things on) it will pause or stop the music. Sometimes when you turn your head back, it turns on again - most of the time not. - The single manual button on them controls the few key functions (on, off, bluetooth pairing). It is controlled by the time you hold the button, and does not work consistently. So you might be playing around with it for 30 seconds or a minute trying to get them on or off, instead of just flipping a switch in an instant. In summary, nothing works as it should, and instead of putting them on and falling into a flow or work or running, or whatever you want to do, these things are going to constantly start and stop, interrupting and frustrating you to no end, the whole time you are trying to use them. I despise them. Why not just keep it simple and build on the quality foundations that this product could have. The people who designed these things should be put in design prison. I have had my share of disappointing products over the years, but I can't think of another one that keeps doling out the punishment or disappointment in quite the same special way that this abysmal product does.
A**N
Amazing sound quality, solid in every other area
Bought these along with the Sony XM5 to compare to my existing Bose 700. Comfort: The Bose 700 I don't find very comfortable, namely the headband, being rather thin, it puts pressure on the top of my head after a couple hours. The Sony had this problem initially, but then I started loosening the headband as much as possible, and being a very light pair, I stopped having that particular issue. All in all I found the Sony much more comfortable than the 700. I could see some folks saying it's more comfortable than the Momentum 4s. However I disagree about that. For me the Momentum 4 are the most comfortable. It has very soft ear pads, much like the Sony. Granted the M4s are heavier, but the weight is distributed very well across the headband, better than the Sony's imo. All in all, it's a close call and the Sony's are really well done comfort wise. Super light and super cushy pads. Could see a reasonable person going in either direction for the win here. Sound quality: I think the XM5 are pretty close to the Bose 700 and could see folks going either way depending on your signature preferences. Personally think I like the Sony a bit better, just more lively than the more neutral Bose. Both are in the same league though. The M4s are way better sound quality wise plain and simple. They're not in the same league. Heck, they're not even playing in the same sport. Find myself listening to music way more often during the day simply because I enjoy it that much more. This is the reason I'm ultimately sticking with the M4s. And it's not a hard decision. Noise cancelation: Sony XM5 are simply the best. If you're buying headphones to block out the sound of your partner playing annoying tiktok vids, this is the one to get. M4s have pretty good noise canceling too, but the Sony's are way better here imo. Bose sits between the XM5 and the M4s, maybe just a little better than the M4s Mic sound quality: I'm work remotely with multiple meetings throughout the day so I've done extensive testing on all three models. In a nutshell if you don't have any special requirements, all of them do a great job. In quiet conditions I prefer the the M4 a little better than the others, my voice just has more body to it, but again, it's plenty clear using any of these models. In noisy conditions, the Sony XM5 are way better than the rest in isolating your voice and minimizing background noise. Simply incredible! The 700 and M4 handled the background noise a bit differently. My voice is clearer on the M4s in noisy conditions whereas the Bose cancel out more background noise at the cost of sacrificing clarity. When there's lots of noise, the Bose can reduce your voice to the point where it's super difficult to hear what you're saying. The M4s will allow more background noise through, but my voice remains super clear and louder than other sounds coming through. One feature I really like about the M4s, the one and only button they have (making it super easy to find) becomes a mute button during calls, zoom or google meetings. Really enjoy that feature as I could walk around the house and unmute myself if I need to talk. A voice tells you if it's muted or unmuted so you know where you're at. No more flushing the toilet while running out of the room hoping no-one on the meeting heard it. The background noise canceling of the XM5 during calls was so good, it made me really want to keep them. But ultimately good music sound quality is something I'd enjoy more often since I'm not often taking meetings in super noisy conditions. Also the M4s have the mute button I could use if I do find myself in that situation. Summery: If you want incredible noise cancelation while listening to music, taking calls or meetings, the Sony XM5 are the one to get. They are head and shoulders above the competition in this respect. If you wanna be wowed by how amazing your music sounds, renewing your love for music you didn't even know you had, the M4s are for you. These are the main areas where there is substantial difference. Sony and Seinheiser truly impressed me in their respective areas of expertise. Aside from those standout areas, these are all great headsets. Even the Bose 700 is a really solid headset. Unfortunately it wasn't able to differentiate itself when compared to these two titans of industry. Noise canceling is great, just can't touch the Sony's. Sound quality also great, just can't touch the M4s. Arguable the Bose are the slickest looking headset of the bunch though.
Q**Q
Sounds good but has connectivity issues
I gravitated towards these set of headphones🎧 because of the reputation of the brands name and just by the appearance alone. I’m in love with the color scheme that they’ve chosen 😍. White and gray never looked so amazing. The touch controls are a nice feature too. I enjoy using them. It’s not complicated not one bit in my personal opinion and experience. The sound quality is pretty good. I don’t know how to intelligently break down frequencies so you’ll have to find an expert who heard these babies to go into detail. I did check out some of my favorite Southern Rap songs to hear how that bass hit and I can say that I wasn’t disappointed and the highs were jamming right too while listening to hi hats in TRAP MUSIC But I am a bit worried about the longevity of these very pricey beauties. The R, L, and headphone name that are locating inside of the ear cup will eventually wear off and that’s the very least of what I worry about. I’m also knowing that the ear cups themselves will wear out as well and start to rip and tear apart just like the other headphones that I’ve spent over $100+ bucks on! Limited warranty’s usually don’t cover replacing worn out ear cups as long as there’s no shortage in them which could cause you to not be able to hear equally out of both of them. The connectivity issues also can be so annoying at times and these are my second pair by the way! I returned the first pair because of connectivity problems. The headphones may often disconnect wirelessly while I’m listening to music or watching something on YouTube. I get so aggravated about it! REVISED UPDATE (1/4/24): I gravitated towards these set of headphones🎧 because of the reputation of the brands name and just by the appearance alone. I’m in love with the color scheme that they’ve chosen 😍. White and gray never looked so amazing. The touch controls are a nice feature. I enjoy using them. It’s not complicated not one bit in my personal opinion and experience but sometimes the functionality is not very accurate. There’s been times I’ve pressed or tapped on the right cup and it would not pause the music especially after the headphones 🎧 randomly disconnects for some reason and I would have to power them off and power them back on then reconnect them AGAIN for them to do some type of reset. The connectivity isssues can be so annoying at times and these are my second pair by the way! 🙄 I returned the first pair because of connectivity problems. The headphones may often disconnect wirelessly while I’m listening to music or watching something on YouTube then I would have to hold the button that under the right ear cup until the headphones says connected, smh 🤦🏾♂️ These headphones are too pricy to have this kind of bug issue I MUST SAY!!!! The sound quality is pretty good, though. That’s why I bought them again after I returned the first pair hoping that I just had a bad set of headphones but I’m currently facing the same problem. I don’t know how to intelligently break down frequencies so you’ll have to find an expert who hear these babies to go into detail. I did check out some of my favorite Southern Rap songs to hear how that bass hit and I can say that I wasn’t disappointed 👌🏾 The lows, mids, and highs sound really great in my opinion. I am a bit worried about the longevity of these very pricey beauties. The R, L, and headphone name that are locating inside of the ear cup will eventually wear off and that’s the very least of what I worry about. I’m also knowing that the ear cups themselves will wear out as well and start to rip and tear apart just like the other headphones that I’ve spent over $100+ bucks on! Limited warranty’s usually don’t cover replacing worn out ear cups as long as there’s no shortage in them which could cause you to not be able to hear equally out of both of them. I was thinking about returning them again and I was going to try another color and see if I would experience the same problem. 🤔 I was also thinking about getting a refund and exchanging them for the Sony WH-1000XM5’s and so I could test them out.
J**9
Top Notch Headphones, 1 PROBLEM however…
These headphones audio quality are amazing some of the best headphones I’ve ever owned, 1 small PROBLEM, they aren’t water resistant in the slightest, and I know that’s my problem for not looking into it enough, anyways, I got a little bit too sweaty doing some cardio and it sounded like the left ear blew out completely and now all it plays is a buzzing crackling noise every time I power on the headphones. So if you are buying these for gym/sports use be careful, if you are buying these for audio quality and for my audiofiles out there these are top notch, noise cancelation isn’t the greatest but I’ve definitely had worse, I’ve heard the momentum 5s ANC are better but I wouldn’t know. Anyways to sum it up for audio quality, build quality, comfort, and software they are top notch but that one slightly sweat problem made them only last 3 months because I finally decided to do hard cardio 1 time.
A**B
Disappointed with the reliability and quality
I ended up returning these headphones after owning them for less than a month. The right side completely stopped working while I was listening to music. The touch controls on the right ear cup still worked, but there was no audio coming from that side. I tried reconnecting, updating, and factory resetting the headphones, but nothing fixed the issue. I also had a few smaller issues while using them. The automatic noise canceling adjustments would make a beeping sound every time the headphones changed settings, which became annoying when it happened multiple times within a short period. The touch controls would also occasionally pick up my hair and accidentally pause music or change settings. My biggest disappointment was the overall feel of the headphones. For the price, I expected them to feel more premium and sturdy. They are lightweight and comfortable, but they did not feel as durable as I expected from headphones in this price range. The best way I can describe it is that they felt closer to a cheaper pair of wireless headphones rather than a premium product. The sound quality was excellent. The vocals and instruments sounded clear, and the noise canceling worked very well at blocking out most noise. However, for the price I was disappointed and would have a hard time recommending these headphones based on the reliability issues I experienced. The sound quality was impressive, but the durability did not meet my expectations for a pair of headphones in this price range.
R**E
Not true Sennheiser. Good audio and noise suppression. Bluetooth and Padding are low quality.
After over three years with these headphones, I feel like it is time to give an honest review. I have owned many headphones over the last five decades, made by several manufacturers. The three brands that have stood out as the best, and come with reasonable prices, giving me the most satisfaction have been the professional grade headphones made by BeyerDynamic (whom I consider the best overall), Sennheiser, and Sony. Note I said PROFESSIONAL Grade. None of these brands, nor any brand, of consumer grade headphones, will be great. That isn't what consumer grade headphones are made for. This is unequivocally true of any form of wireless headphones, especially Bluetooth, as the technology is simply impossible to make as high quality as wired. My experience with consumer grade headphones is limited, as I am a musician, and love to listen to Jazz, Classical, and Progressive Rock, which are all music types that are best experienced with true high-fidelity audio equipment, though you need not go insane with the ultra-premium audiophile junk that is marketed with baseless and often downright dishonest BS associated. Just solid copper wiring, well engineered amps with over-spec'd solid state components (or if you prefer the warmth of tubes like I do, go with tube circuitry). Note, I never wear headphones in public - I don't like looking like a martian or an idiot as some people seem to do. Rather, I listen to music at home, and as such, only listen using professional "audiophile" grade wired over the ear, open-back headphones in an otherwise silent room for the most pristine listening experience. So, with all that said, it should be noted that these are not TRUE Sennheiser headphones, but merely Sennheiser branded, under license, that are NOT MADE BY SENNHEISER, but rather made through a partnership with Sonova Holding AG, a Swiss hearing aid company that acquired Sennheiser's consumer audio division (including wireless headphones and soundbars) in 2021, with the two companies collaborating to continue the brand's consumer products, while the original Sennheiser remains focused on professional audio. Sennheiser's wired headphones, especially their high-end audiophile models (like the HD 600, HD 800 S, IE 600, IE 900) and professional gear, are still made by the original Sennheiser electronic GmbH & Co. KG, a German company focused on Pro Audio and high-end wired consumer gear, while their general consumer wireless headphones are developed by Sonova AG under license, following Sonova's 2021 acquisition of Sennheiser's consumer division. Key Distinction: Sennheiser (the original company): Still German-owned, focuses on professional audio (microphones, conference tech) and high-end, audiophile wired headphones, manufactured in places like Ireland. Sennheiser-hearing.com (Sonova): The consumer side (wireless headphones, soundbars) is operated by Swiss hearing aid giant Sonova, using the Sennheiser brand name under license for their audio products. So, if you're looking at premium wired headphones from Sennheiser, look to the wired HD 600 series or IE series, as they're from the original Sennheiser; and if you are looking for Bluetooth headphones, be aware that the Sennheiser brand is only a name and does not reflect on the quality that Sennheiser has long been known for as they are from the Sonova-operated consumer headphone division. Likewise, be aware that bluetooth is a VERY problematic technology, with frequent problems with connecting devices, random disconnects and audio dropouts, glitches and noise. In short, bluetooth with NEVER give you professional grade audio. Note that whilst you CAN connect these headphones using an audio cable, you will not get true Sennheiser quality audio out of them, as they just are not true Sennheiser headphones and have lower quality drivers (what the the actual speakers are called), and the audio circuitry remains part of the circuit. Pros: Acceptable, arguably above average audio quality - though this is a VERY subjective matter, and is especially present when used as wired headphones, but DO NOT EXPECT Sennheiser pro grade audio out of these. You will NEVER get that out of Sennheiser or ANY Bluetooth headphones as Bluetooth and the digital circuitry is inherently trouble prone, even with a direct wired connection, as the electronics introduce both active (crosstalk interference when powered on) and passive (impedance issues due to inevitable circuit design). The noise suppression is okay, but definitely below par. Both Bose and Sony do significantly better in this regard. Build quality is another major issue with these headphones. The padding comes apart as it is merely glued, and whilst the ear pads are replaceable, the only available replacements appear to be third party. However, the headband pad also comes loose - I was able to repair mine using a a syringe loaded with glue, and a metal spudger to tuck the fabric back under the edge. Not optimal, but workable.
L**E
Très satisfaite !
Je suis très satisfaite de mon casque, qui est très confortable et fonctionne très bien. Le son est magnifique, et le prix était raisonnable quand je l’ai acheté.
F**N
Topkwaliteit hoofdtelefoon
Dit is de beste draadloze hoofdtelefoon die ik ooit gehoord heb. Schitterend geluid en comfortabel draagcomfort.
A**N
Recommended💆♂️100%
Daaaaaamn😵💫 It just sound better than my bose somehow Sound is 20%weaker than bose but its more deeper and richer than bose🕺
M**N
SONHO REALIZADO!
Sempre tive vontade de ter um fone sennheiser original, e este importado da china (afinal todos são fabricados lá na asia) é original e a meu ver perfeito! O isolamento de ruidos é satisfatorio, não preciso de muito. Seu audio é maravilhoso, e usando o app de androide tem diversas equalizações, mas eu deixei em NEUTRAL, pra mim foi a que mais agradou! Fui assistir o filme TRON em 4k audio 5.1 no pc e no celular pelo app do stremio e realmente a qualidade é fenomenal! Audio: Cristalino, e olha que ja tive fone samsung buds e esse é melhor. Bateria: JOGO bastante no CELULAR (bluetooth) e ouço videos no COMPUTADOR e realmente o fone dura as 60h, mesmo com o cancelamento de ruidos ativo. Sua espuma é macia e não aperta demais, nao doi a cabeça, não cai da cabeça mesmo se abaixando pra pegar algo. Qualidade: é plastico, mas de excelente qualidade, e tem tecido na alça do fone, agradável. Sua espuma é revestida em courino, mas vai durar mais de 1 ano com certeza, e depois só comprar uma de veludo e repor no lugar, tem algumas à venda aqui mesmo na amazon brasil. Comprei um transmissor aptx da UGREEN usb-C e é compatível com o momentum 4, funciona maravilhosamente, em filmes DOLBY fica xuxu beleza (gíria brasileira para ótimo). Enfim, agradeço a amazon e ao vendedor addventure pelo excelente produto e entrega rápida (exatamente 1 mês após a compra, mês de dezembro e moro no NORTE do BRASIL)
A**I
Excelentes
Tras varios días de uso, estoy muy satisfecho con los auriculares. Tuve mis dudas porque las primeras unidades (2022) presentaban problemas de conexión y algunos de hardware (desbalanceo). En mi unidad puedo confirmar que funciona todo como la seda. La app va perfecta también. Tengo la versión 4.0 de hardware (en la app Smart Control, navegar a Ajustes/Información del producto) por si sirve de referencia. Pros: - Autonomía: es absurdamente alta. Usándolos entre 6 y 8 horas al día puedes llegar a más de 6 o 7 días de autonomía con ANC. Además, la carga es muy rápida. - Calidad de sonido: es excelente tanto por USB como Bluetooth (aptx HD). Tiene aptx Adaptive pero no he podido probarlo. Para que se escuche bien con Jack es mejor tenerlos encendidos para que trate la señal. En mi caso ni siquiera he necesitado ecualizar ya que el sonido de fabrica está muy bien balanceado. Los bajos igual están ligeramente altos pero no es molesto porque es leve y es en las frecuencias muy bajas. - Controles táctiles: una vez que te acostumbras es muy intuitivo. - Robustez: Se sienten muy robustos aunque habrá que ver cómo aguantan usos intensos. - Funda: Es pesada pero protege más que cualquier otra funda que haya visto. Contras: - Espacio orejas: Es posible que tus orejas toquen ligeramente por dentro del auricular. No me parece grave pero si a tener en cuenta. - Calurosos: Ahora en invierno sin problema pero tiene pinta que con calor no serán agradables. Además, puedo decir que el ANC funciona bien aunque no lo puedo comparar con los rivales. Las llamadas se escuchan bien y el micro funciona bien. Extra: los auriculares se apagan al guardarlos en la funda y se encienden al sacarlos. Puede resultar extraño porque a veces te piensas que están apagados y viceversa. Es cuestión de acostumbrarse. La Special Edition me parece preciosa.
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