1. 2.4G wireless transmission adopts 2.4G wireless connection mode, leaving the "wire" system, and the desktop is clean and beautiful2. Ergonomically comfortable grip, fits the palm radian, and the hand support is . There is no pain after long use3. Classic roller, sliding, ABS material, fine texture, and 4. USB interface, plug and play, universal USB interface, no terminal, widely compatible, plug and play5. 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 willProduct name: Wireless MouseModel: OPM 280Transmission mode: 2.4GPower supply mode: 1 batteryRate of return: 250Hz/sMovement speed: 30 inches/sec:800-1200-1600DPIProduct size: 113 x 62 x 33mmColour:WhiteMaterial:ABSPackage Contents:1 x Wireless mouseOnly 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.