ProtoArc Wireless Trackball Mouse, EM01 NL Ergonomic Bluetooth Rollerball Thumb Rechargeable Computer Laptop Mouse, Adjustable Angle & 3 Device Connection for PC, Mac, Windows-Gray Ball

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I like it very much , But peaple should know that it is not movable You will use the ball

Coming from Logitech MX Master 3S and a first time Track Ball mouse user, this product is amazing. It takes some time to get used to but this feels great in the hand. The built quality is a tad bit less compared to MX Master but at least it doesn't have the rubber coating that MX master have that disintegrates over time. Very good value for money plus the amazon discount!

Good quality. Takes a while to get used to after using a “traditional” mouse. Glad that I made the change…

The scroll wheel has not been working properly (Laggy) fresh out of the box and it kept getting worse. Disappointed as this is not a cheap price for a mouse.

I was looking for a replacement for my Logitech mx ergo, which was having problems with the left button. I decided to save money and buy this device, which was a mistake. Everything looks great in the photo, until you touch the device with your hands. The plastic casing feels unpleasant to the touch. Over time, the surface naturally accumulates dirt, and then it feels better😆. But the big problem right now is that the middle button is malfunctioning. In general, if anyone is considering this device as a replacement for the mx ergo, it would be a mistake. I think I'll buy a Logitech again.

Doesn’t work after 2 weeks very bad product

I like the track ball in the mouse.Good for daily use

Articolo di buona fattura. Purtroppo ho dovuto renderlo in quanto risulta piccolo per le dimensioni della mia mano. Le indicazioni fornite per la corretta misurazione della dimensione della mano sono abbastanza affidabili tuttavia bisogna sempre considerare il fattore comodità che è comunque personale.

Best Logitech trackball yet. Easy to set-up & use on Win 10 & 11.

Best trackball mouse! I have used trackball mouse for a long time. Still using my corded Microsoft Trackball 1 that has long ceased production and with its surface faded badly. I have tried many name brands and no names searching for a replacement, preferably a cordless one. So many failed promises, handsome looking but non working and oddly designed nut jobs! ProtoArc EM01 is the one! I decided to write about it less than one month of usage, a first for me! For electronics, I tended to give it at least a three month break-in period. Here is why I think the EM01 is the best wireless trackball mouse: 1. True wireless! I hooked up to three devices wirelessly all at the same time! My Mac Pro, PC and MacBook Pro running both Mac and Parallels Linux. That is combination of Bluetooth and wireless 2.4. With the selection button on the mouse, the change over is seamless. The working range is fantastic. Also most importantly, under each device the operation is smooth and lag free no matter the OS and software. Clearly the EM01 did right about its software integration with multiple platforms. 2. Comfort! I was not sure about the angular side titling function at the beginning. I was wondering which hand doctor gave ProtoArc about the idea. I decided to give it a try. What a difference! At least for my normal hand, the mouse fatigue is gone! I am serious about this. I am on the computer daily for hours. Even with my beloved wired trackball mouse which is quite ergonomic, after a while the arc of my hand tended to tighten up. And after some time, you hand became tired. Not with the EM01! 3. Just the right amount of buttons and presets. A mouse should be simple! The scroll wheel on the EM01 is perfect! The other four preset buttons which two are customizable are functioning beautifully and at the right position. 4. Battery lasts forever! I did NOT charge the mouse when I first received it. Right away went into using it. The battery indicator has been on 100% the whole time. So the other day, for the sake of it, I plugged it in to charge. Within half an hour or less, I noticed the charging light had gone off indicating there is a charging protectionism in place. All positive! Highly recommended!

This is a brilliant mouse. The ball has a nice smooth glide action coupled with accurate pointer movements. It is very comfortable to use and the tilt action makes it even more comfortable. I thought it was a bit of a gimmick when I read it in the advert, but having used it for a month or three now, the tilted angle is the most comfortable way to use the mouse. The connectivity is good and you can still use the mouse whilst charging. So there shouldn't be any down time.

Sehr leise, ergonomisch und präzise: Ich nutze die ProtoArc EM01 NL nun seit einiger Zeit und bin sehr zufrieden. Die Tasten haben ein angenehm dumpfes, fast geräuschloses Klickgeräusch, was besonders im Büro oder abends am Rechner sehr angenehm ist. Durch den verstellbaren Winkel liegt die Maus hervorragend in der Hand und ermöglicht eine entspannte, natürliche Haltung auch bei längerer Nutzung. Der Trackball arbeitet sehr präzise und lässt sich mit dem Daumen flüssig sowie exakt steuern, auch feinere Bewegungen gelingen problemlos. Die einstellbaren DPI-Stufen bieten zusätzliche Flexibilität und die Möglichkeit, per 2.4G USB oder Bluetooth zu verbinden, ist praktisch für mehrere Geräte. Insgesamt eine durchdachte, komfortable und hochwertige Trackball-Maus, die ich klar weiterempfehlen kann.