1. 2.4G wireless transmission adopts 2.4G wireless connection mode, leaving the "wire" system, and the desktop is clean and beautiful 2. Ergonomically comfortable grip, fits the palm radian, and the hand support is . There is no pain after long use 3. Classic roller, sliding, ABS material, fine texture, and 4. USB interface, plug and play, universal USB interface, no terminal, widely compatible, plug and play 5. The can be adjusted in three gears. It supports the sensitivity setting in three gears. The 800-1200 (default) - 1600DPI can be adjusted at will. You can browse the web, play games and work at will Product name: Wireless Mouse Model: OPM 280 Transmission mode: 2.4G Power supply mode: 1 battery Rate of return: 250Hz/s Movement speed: 30 inches/sec :800-1200-1600DPI Product size: 113 x 62 x 33mm Colour:White Material:ABS Package Contents: 1 x Wireless mouse Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.