ProtoArc Ergonomic Mouse, EM11 NL Bluetooth Rechargeable Wireless Vertical Mouse, 3 Multi-Device Connectivity for Computer/PC/Laptop, 2.4GHz Optical Mice for Windows, Mac OS, Black

Perfect shape, light weight, comfortable in the hand, buttons well placed, quiet and responsive. The surface has a slightly soft matte finish giving the right amount of grip but having a smooth, tactile feel. It feels like my hand does not have to move this mouse as much as a conventional mouse; the ergonomic hand orientation gives a sensation sort of like holding a really big pencil - I can engage my fingers/fingertips more for precise movement compared to a standard mouse. I did not have any discomfort or learning curve at all. If you have large hands, be sure to look at ProtoArc's hand size measurement guide, as this mouse is sized for small to medium hands.There is no lag when using either Bluetooth or the wireless USB mini receiver (I'm using on a Windows 11 PC). All the buttons and scroll wheel function as designed. The mouse has forward and back buttons on the thumb side for navigating webpage history; the dpi selector is on top so you can change cursor speed very easily with your index finger while using the mouse. It came with its own USB charging cable; the device was charged out of the box but I found the charging function also works as intended. The box it came in was substantial like a new smartphone would come in - very professional.This wireless mouse is well designed, performs wonderfully, and is very reasonably priced. I would recommend this even if you aren't specifically looking for an ergonomic option.

This ergonomic mouse has been a game-changer for my work setup. The build quality is excellent—it feels solid and well-made, with a comfortable, ergonomic design that fits perfectly in my hand. After using it for long workdays, I’ve noticed a huge difference in how my wrist feels—much less fatigue compared to a traditional mouse.The buttons have a satisfying, smooth click that adds to the overall premium feel. I also love the easy multi-device connectivity. Switching between my laptop and desktop is as simple as pressing a button. If you’re looking for a high-quality ergonomic mouse that combines comfort, functionality, and convenience, this is a fantastic choice.

Almost perfect. It’s a good price, the scroll wheel does not cause pain after long use, it’s good speed on the scrolling, with decent buttonsBe aware of: it’s really hard to tell when you’re almost out of battery, and battery life isn’t the best. Also, the DPI toggle is positioned in a way/functions in a way where it is accidentally triggered/clicked frequently

I wasn't sure about buying an unknown brand, but this mouse has surprised me in all possible ways:1) Ergonomics 10/10 - one of the best hand positions imo.2) Functionality is 10/10 - long battery life and no false tracking.3) Ease of use 9/10 - finding the best hand and wrist position to use this mouse might take a little time.4) Connectivity 10/10 - it connects through Bluetooth but comes with a dongle that can provide direct wireless connection.I use this daily for internet browsing, word processing, and CAD design. I am keeping it and will most likely try other products from the same brand.

On my initial usage, this vertical mouse impresses me. It is smooth and responsive to commands. It has a handsome fit and finish and feels good in my hand. Its scroll lock is superb, engaging on light finger pressure and moving the cursor quickly up and down the screen without hitches in its get along. The screen forward and backward keys above the thumb rest respond crisply, although I don't often use these tools. The product is attractively priced. It is too soon to know if the mouse it durable, but the manufacturer thinks it is. It offers a two-year warranty. My one criticism is that the dpi key behind the scroll wheel it too easily toggled. The fingers on the left and right curser keys tend to brush across it, sending the cursor on a wild ride into temporary oblivion.

I find the palm rest area gets in the way. If you have smaller hands you might be able to get your whole hand on the mouse, but with my larger hands my palm is half on the mouse and half on the desk. I would prefer to have my hand on the desk so I can move the mouse with my fingertips, but the large palm rest just gets in the way.I also find the thumb position a bit awkward. If my hand is going to be up at an angle the natural position of my thumb is up away from the desk, but the thumb position on the mouse is actually rather low making it a bit of a stretch.Performance wise it is mediocre. I can notice a small amount of latency, but not too bad. Has issues with accuracy of small, slow movements.Feature set is impressive for the price, wouldn't expect something this cheap to have a built-in rechargeable battery.Mouse buttons and wheel feel pretty good. Buttons are actually silent but still have a good feel.