The ergonomic design of this vertical mouse ensures that your arm and wrist stay at a natural angle of 57°, which prevents fatigue. That's why the mouse is a good choice for surfers and long-time computer users. This 2.4G wireless mouse has 4 DPI levels (1000/1600/2000/4000), you can choose the right DPI depending on usage or screen resolution for the most precise control. The UGREEN vertical mouse has a maximum working distance of 10 m, so you are no longer restricted by cables. Thanks to 2.4G, you can connect Windows (7/8.1/10/11)/macOS (10.15 and above)/iOS (13.4 and above)/iPadOS (14.0 and above)/Android (5.0 and above)/Chrome OS or Linux devices a fast and stable connection. The product is 119.8 x 85.8 x 73 mm in length, width and height and weighs 105 g, specially designed for large hands for a comfortable grip.