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. Read more

I was using a Logitech Ergo M575 before. While it was very comfortable to use, the trackball lacked the accuracy I wanted. That si how I started looking at other options. As someone who spends hours at the computer, I was eager to try this one out. Here's my experience: What I liked: Comfort: The vertical design takes some getting used to, but it definitely reduces strain on my wrist. The extended wrist rest provides good support, and the overall shape feels natural. Functionality: The mouse has multiple buttons (including forward/back), adjustable DPI, and can connect to three devices simultaneously via Bluetooth or USB. This versatility is a big plus for multi-device workflows. Battery Life: The battery life is impressive as per claims. I charged the device to a 100 percent about 5 days back and it still shows 100. Aesthetics: The mouse has a sleek, modern design. It looks good on my desk and the main buttons and scroll wheel are very silent. The buttons on the side are loud though, but not very annoying. What could be improved: Button Placement: While the overall shape is ergonomic, the button placement takes some getting used to. The thumb buttons, in particular, feel a bit awkward to reach initially. Scroll Wheel: The scroll wheel feels button is a bit too sensitive for my liking. I end up clicking it while scrolling. Software: ProtoArc doesn't offer any customization software for the mouse. It would be nice to have the option to reprogram buttons or adjust sensitivity settings. Overall: The ProtoArc EM11 NL is a decent ergonomic mouse that delivers on its promise of comfort and functionality. For the price, you cannot really complain, but if you are nitpicking, it's a good option for those looking to reduce wrist strain and improve their work setup. However, the button placement and scroll wheel could be better, and the lack of customization software is a minor drawback. Recommendation: If you're looking for an affordable vertical mouse with good ergonomics and multi-device connectivity, the ProtoArc EM11 NL is worth considering. However, if you need advanced customization options or prefer a better scroll wheel, you might want to explore other options such Logitech MX Vertical, which is 5 times more expensive than this. Read more

El mouse es excepcional, la relación precio función es excelente y los materiales y batería son altamente durables. Read more

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. Read more

It's five star all the way, except for one naggy feature -- I almost deducted a star for it, but changed my mind, because you can get used to it. My only negative is the scroll button. It's too easy to accidentally press down. The other thing is, why can't I map buttons? But for ergo comfort it's thumbs up all the way. Love. Great ergo hand-shake feel, good for medium sized male hands, nice quality, battery seems to last (so far a week on a charge from USB). You can tell this was designed by an engineer. It's a good match with the ergo split keyboard from the same designer. Read more