HIGH SPEED: 3 Adjustable DPI levels (1600-1200-800) can freely change the speed and perfectly meet the needs both in home and office. SIMPLY PLUG-AND-PLAY: Plug the device into your computer USB port and start using your mouse right away. RELIABLE AND DURABLE: The high-speed precision optical mouse ensures a fast response and smooth operation. RELIABLE QUALITY: 30 million clicks lifespan , intricate polish manufacturing processes and meticulous assembly provide the functional reliability of the mouse for years. UNIVERSAL COMPATIBILITY: The computer mice has a wide range of compatibility, Compatible with computer, laptop, desktop, PC, laptop, Windows XP/Vista/7/8/10.any problems pls feel free to contact us.