Rechargeable X5 Wireless Silent LED Backlit USB Optical Ergonomic Gaming Mouse Features: 100% Brand New in Box It comes with the 6 Breathing Blacklit Led. Buttons: Silent The Latest Wireless Technology Latest Rechargeable Technology High Quality, Compact Design and Measurable Weight Fashion Cool Wrangler Battletech Style. High Precision Positioning Super Wide Roller Non Slip Gel Slim Design Ultra-precise Scroll Wheel Customize DPI Switch: 800/1600/2400dpi. Ergonomic Hybrid Shape Power: 500mah Lithium Batteries (Included) Duration of charging: 2-3 hours Ultra-quite and Low-friction Resolution adjustable in driverless-free drive Size: 130x68x40mm Switch Life: 10 million cycle 4000FPS frames per second (32 megapixels per second) Special Edition for Gaming Ergonomic Both-handed design Buttons: 6 buttons with scroll wheel (Two Side-Buttons, One DPI Key) Most suitable for Laptop user and PC user Optical technology works on most surfaces Intelligent connectivity. no need to code, plug & play Built-weight iron, feel comfortable, mobile and stability Compatible with Windows XP, Vista, Win 7, Win 8, ME,2000 and Mac OS...or latest Mouse Weight: about 125g Package Included: 1 x Wireless Gaming Mouse (With Retail Box) 1 x Nano Receiver 1 x Charging Cable