Blue Tooth Amplifier Board HiFi Stereo 2.0 2X50W Audio Amplifier Module TPA3116D2 Digital Power Amplifier Blue Tooth 5.0 Dual Channel AMP with AUX/USB/Flash Drive/PC Sound Card Input

Well worth it. Very clean sound. No noise. Plenty of power. HINT: those 20v batteries on your power drill are perfect for creating a portable boom box project. Years before Bluetooth speakers became a thing (but after iPods) I cannibalized Klipsh, Cerwin Vega, Altec, JBL, home speakers to build boom boxes and have recently replaced the old amplifiers with these. They ALWAYS work fine. And your battery will play for hours if you are reasonable with the volume. Most folks don’t realize how much volume you can get with 1 watt/channel, 15 is overkill. Still, watch out for distortion and high end sizzle because it’s possible to overpower some high efficiency speakers.

I really like it, it's tiny, maybe 3 x 3. I have several wuzhi mini amps, and they're all great. No EQ on this one, which is what I wanted, I use it to power passive studio monitors and wanted a flat response. Lots of connectivity options.

Okay, I got this item to add power to some speakers, and it did just that. So now the computer speakers are louder, and the volume knob is easy to use. But, you have to buy a power supply, which is more expensive then the unit. Also, no instructions. So if your now a DIYer you might have problems putting it together. Although, there is not much to doing that. All in all it is a very nice gadget. I'd give it a 4.5 stars, due to lack of a power supply, and no instructions.

works great.

Pretty easy to put together with the provided screwdriver, even though there are no instructions. I had to look at the pictures in the Amazon listing to see how and where to put the heat sink. There a little insulating sheet that goes under the pc board, with holes where there are wires on the bottom of the pc board. The underside of the power and speaker connectors extend into and thought these openings. The screws that hold the amp together raise it just enough so that they don't touch a flat surface, but if it were set on a coin or key, for example, you might get some sparks. The sound is great. I'm running it with the 12 v supply from the 20 watt x2 amp I had, that became scratchy or noisy after 10 years or so, and volume is plenty for me, with a pair of little Yamaha NS10 speakers. It also looks nice. I'm using stranded 16 AWG wire to connect the speakers, and it's a little hard to get into the screw connectors. You have to get all the strands straight. Also they are really close together, so watch out for stray strands that could cause a short. The amp is so tiny and light I had to be careful how the speaker and power wires are arranged so they don't pull it around.

It works as intended, no noticeable issues with audio quailty. Bluetooth connection is good and it gets much louder than you might expect from a little amp that sits in the palm of your hand. Perfect for a little project.

So Far So Good! Using this little amp connected to a projector that runs for 2 hours each night for animated decorations. Had a different amp that sounded muddled, so I gave this one a shot and it sounds good! I'm running it with an 18VDC power supply and running at probably 75% volume to 2 Yamaha speakers.

Does its job. Bluetooth connection strong enough to reach my phone across 2 rooms. Auto-connects once paired/detected, so have to disable (original source bluetooth) & re-pair if you want to change devices. Power-button is "springy" and can pop/fall out if not careful. Would have preferred a single (twist) on/off/volume knob instead.

Muito bom aparelho sistema bluetooth excelente!!! Recomendo

Esta compra me super agrado, nunca imagine que este super pequeño amplificador alimentaria mis bocinas Micca y las llevaria a un muy alto volumen. Es fantastica, solo asegura alimentar adecuadamente y el equipo te sorprendera.

Buena relación calidad precio, lo tengo en unas bocinas jvc y se escucha bien, el Bluetooth no tiene mucho rango, el volumen es bueno sin distorsión.