ProtoArc Wireless Trackball Mouse Bluetooth, EM03 Ergonomic RGB Finger-operated Rechargeable Computer Laptop Mouse, 3 Device Connection, Compatible with iPad, Mac, Windows, Black (DE-EM03(Black))

is is a superb tool that far exceeds the Kensington versions.Hardly a minute from unpacking, I was scrolling around the monitor as smoothly as silk glides off velvet.

I bought this to replace a Kensington Expert Mouse that I thought was going to be an upgrade for me but was the opposite and was returned because of very poor quality making it abysmal value.This is superior in every way, smooth track ball and scrolling operations, wireless with three connection methods and a big bonus it's half the price of the Kensington.It has a colour changing LED light around the ball but this can be disabled if it's not your thing.Controls are a bit different from what I have been used to so a bit of a learning curve but after a week or so it is now second nature. I originally used Kensington orbits that tended to last about two years before the micro switches failed. It's to early to tell about the reliability of this one yet if it breaks early I will return and edit this review.

Brilliant, owned a few different brands up to really fancy but this one has exactly what it needs. Yes it will wear on the top surface quickly but my tendons don't care too much about that. One but! Or if only! Mouse move speed! If that could be a setting then it would be perfect.

The mouse is a perfect size for resting my hand on. I use for work and gaming and can jump between multiple devices using the Bluetooth connection but i do find the dongle connection to be much more stable. I love that the dongle clips into the mouse and the charging port is in a good spot to be able to use and charge at the same time.My only gripe is that ball is super loose, great for speed rolling but also a major pain when it takes off across the room if i get a little too excited trying to run from enemies. In saying this i am buying a second one so that I can have dedicated ones for work and play so this is by no means a deterrent to buying.

Finally a trackball that can truly replace the Marble Mouse!If, like me, you have found all other trackballs to place the left button too far forward, or found them too stiff, then this is the one you want.Battery life is super impressive, and it can connect using the included dongle or Bluetooth.

This trackball offers very good value. For such a low price you are getting a large, smooth ball, comfortable shape (right hand only, unfortunately), full set of buttons, two connection modes, and even RGB lighting.The buttons are right where you expect them to be, the battery lasts for long, and if you do not like the lighting, you can easily switch it off.The only issue I had with it was that the mouse comes with nice matte finish, which quickly rubs away and becomes shiny. I hope ProtoArc will make it more robust in future iterations.It would also be nice to have an option to configure the buttons and create macos. Maybe in a more expensive model.

I purchased this mouse as I have been using the Logitech MX Ergo for the past 3 years, but its' LMB switch is starting to wear out. In addition, since I had every now and then experienced a strain on my thumb joint, this led me to try a few index-finger trackballs to see whether my experience with them would be superior to my thumb trackball.Firstly, I liked the use of a silent switch for the right click button. It is not stiff (unlike the Orbit Fusion which I recently ordered to compare), it feels nice and easy to press. The left click and side buttons are in a great position, however, my main gripe that made me send back this mouse was the position of the scroll wheel. When I tried using the EM03 for a day, I actually experienced more strain on my thumb joint than with my MX Ergo, as the scroll wheel was in quite an awkward position! I really hope that in a later model, ProtoArc experiments with putting a scroll wheel ring around the ball, similar to the Kensington Expert or the Orbit Fusion - this would be far more intuitive.

Since I bought this to replace a much cheaper wireless mouse it's hard to compare the two but it is certainly considerably larger. It's even bigger than my Logitech Marble Mouse. Putting that to one side, it is of very good quality and a pleasure to use and hopefully should last a good while. Highly recommended if you don't mind the size.