NuleaM501 Wireless Trackball Mouse, Rechargeable Ergonomic, Easy Thumb Control, Precise & Smooth Tracking, 3 Device Connection (Bluetooth or USB Receiver), Compatible for PC, Laptop, Mac, Windows.

excellent item.

I like cordless, trackball mice and have had to be reliant on the Logitech brand. They USED to be wonderful, but switched to the cheapest micro switch maker they could find. Any other brand was worse. I had to swap for new ones every 18 months or so. They CAN be repaired, but it's a PITA to do.This new brand was a good price. It's well made, nice ergonomics, more button options then Logitech and best of all - recharges via USB. This kicks ass over swapping AAA batteries a lot on the Logitech.I love it. It's wonderful to use. I will never buy another Logitech product again - my keyboard is now a superior Razer.You will enjoy this mouse. It also came with PRINTED instructions! Yay!

Es un mouse muy bueno, quizá un poco incómodo al principio pero te acostumbras al paso del tiempo. La batería dura muchísimo. Muy recomendable

As a long-time user of the old wired Logitech Trackman Wheel models, I was hesitant about trying this.I had bad experiences with TWO of Logitech's newer M570 models wearing out their buttons in less than 6 months time. I even bought used Trackman Wheel models online after they became discontinued, and those lasted a lot longer than the newer M570s.I've had this Nulea for 3 months now and use it daily, and can safely recommend it for anyone looking for an alternative. It has been reliable and works very well for someone used to the Logitech models.The position for your hands is ever-so-slightly different than the old Trackman Wheel's slope/angle, and it does take a few days to adjust if you're so used to another model. But it's very slight and not anything that feels drastically different. Once you've acclimated, it feels very natural and comfortable, even for all-day use.Just like with the Logitech models, it successfully keeps my wrists and hands pain-free, where with a normal mouse (which I gave up decades ago for this reason) I'd have bad hand cramps and wrist pain from the repetitive movements involved.Other reviewers have mentioned Nulea has great customer service, but so far I haven't had any need to confirm that myself. Everything is working great for me. I chose to use it via the wireless adapter rather than bluetooth, simply because my bluetooth connection is a bit spotty at times for my liking (with other devices too, not just this trackball) but it has been a great experience using the wireless USB adapter.For anyone who happens to use Linux, it works flawlessly on Linux Mint for me. The sleep mode is handy for those times when I forget to turn it off overnight, or just in general for idle periods to help conserve battery power. When it enters its sleep mode, all you do is click the left button once to wake it back up, and then you can move the mouse and use it like normal again.After the initial charging period when I first got the device, I've only had to charge it I think once or maybe twice, in a 3 month period, so the battery lasts for a long time on a charge.The DPI button is really helpful to have too, and I like to set it to the max amount. I was sorely missing this feature when I briefly went back to using my spare old Logitech Trackman Wheel on another device for a time. I'll probably order a second one of these Nulea models for that device at some point honestly, now that I know they are reliable and great to use.It might seem like a small thing too, but I also love that you can pick different color trackballs. I've got the gold model and really like how it looks with the dark grey.The only odd thing I have noticed so far is that the scroll wheel sometimes has a bit of a squeak or "chirp" to it after a while of using it (I thought it was a bird outside my window the first few times I heard it, until I realized) but it doesn't seem to impair functionality any, and most of the time it isn't an issue.Right now as I type this and scroll the wheel it's not making any such noises at all, for example. Even when it does squeak a bit, it's nothing that feels like it's faulty or in any danger of breaking. So far it is definitely not a problem, and my experience overall with this trackball continues to be a very positive one.

Funciona muy bien. Para trabajos de precisión no es lo más indicado, pero para el uso diario del ordenador en oficina te evitas estar moviendo la mano con malas posturas. Se puede regular el DPI y la bola se puede extraer para limpiar sensores. Funciona con batería, tiene puerto de carga USB C y se puede cargar mientras se usa. Se conecta por bluetooth o por RF con un USB. Es muy completo y ergonómico.

Ottimo mouse, completo e funzionale.La prima carica è durata oltre 2 settimane utilizzandolo circa 8 ore al giorno.Sinora sono soddisfatto dell'acquisto.