Ergonomic vertical design: With an upgraded matte surface and unique ergonomic curve design, professional anti-slip edges on the sides. The ergonomic vertical mouse fits your palm perfectly, offering stronger grip and reducing muscle strain and wrist pain while keeping hands and arms in place for a more comfortable position. 2.4 GHz wireless ergonomic vertical mouse: 2.4 GHz wireless technology with strong anti-interference capability, stable cursor movement. Solves issues like mouse errors, lag, interference, etc. Ensures more precise positioning and faster data transfer speed when used. The transmission range can reach up to 33 feet. An excellent wireless mouse suitable for home and office use; the USB C charging cable can be used as a wired mouse during charging for convenience. Chargeable wireless ergonomic vertical mouse: A computer ergonomic vertical wireless mouse with long battery life, intelligent automatic power-saving mode, and dual power with physical switches. This significantly extends battery life. If not used for 10 minutes, it enters automatic power-saving mode to save energy. Simply click the wireless mouse to resume operation or turn off the physical power switch at the bottom to save energy. Three levels of adjustable DPI: 800, 1200, and 1600 DPI. You can freely adjust the cursor sensitivity according to your activities. DPI 800/1200 is suitable for daily office use. DPI 1600 offers higher sensitivity and is highly recommended for gaming. The USB device can be stored on the back of the mouse; it supports a USB charging cable (which can be used as an ergonomic vertical mouse with cable during charging). No driver required; plug-and-play silent mouse directly.