The Redragon M656 GAINER wireless gaming mouse has an adjustable DPI of up to 4000 dpi, HUANO gaming switches and 7 buttons. This is a professional gaming mouse for professional gamers. Features: 4000 DPI (1000/1500/2000/2400/4000) HUANO game switches 7 buttons (left and right click, wheel click, 2 side buttons and 2 DPI buttons) Adjust DPI during use Sensor technology: optical Illuminated 8 mm scroll wheel Illuminated Redragon logo Smooth and durable Teflon pads Button endurance: 10 million clicks 2.4 Ghz wireless interface with nano receiver Works with 1 LR06 battery Compatible with XP / Vista / Win7 / Win8 / Win10 Weight: 138.4 g Dimensions: 128.5 x 74 x 41 mm