Redragon M690 4800DPI Wireless Gaming Mouse is designed with comfortable, sweat-proof grip texture. Contour of the body suits your hand size and grip style. Allow you experience the maximum comfort while you surf the web, work in the office or play your favourite games.Features: - Built For Competitive Gaming - 7 Programmable Buttons - Supreme Comfort And Ergonomic Design - Voltage: 1.5 V - Current: 15ma - USB: USB 2.0 (The Wireless Tiny USB Receiver Can Be Inserted Into the Slot Next To the Battery Slot, Allowing Ease of Storage When Not Used.) - Power Supply:1 X AA - Polling Rate: 500HZ - Tracking System: Optical - 6 DPI Level: 800/1200/1600/2400/3200/4800 DPI Adjustable - Key Lifetime: 10 Million Times - Compatible: Windows 10, 8, 7, Vista, XP, Mac10 Or Later Operating System