Features:High Quality， Compact Design and Measurable Weight Fashion Cool Magic Mysterious Rune Style. Strong Acceleration: 15GMultimedia Keys Cool Optical Carving High Precision Positioning Long Strong Wired Super Wide Roller Non Slip Gel Slim Design High Quality Foot Feet The Built in Weight Iron Ultra-precise Scroll Wheel New Version: High Resolution: 2400DPI Customize DPI Switch: 800/1200/1600/2400dpi. Integrated 4 Level Full Auto Key Setting True 2400DPI A3305 Pro-Gmaing SensorErgonomic Hybrid Shape Ultra-quite and Low-friction Resoulition adjustable in driverless-free drive Size: 125 x 75 x 40mm Switch Life: 8 million cycle 32-bit ultra-wide data path 4000FPS frames per second ( 32 megapixels per second) Zero-acoustic Ultraslick? Teflon feet Special Edition for Gaming Ergonomic Both-handed design Buttons: 4 buttons with scroll wheel(One DPI Switch/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 The USB cable length is up to about 1.8m Compatible with Windows XP， Vista， Windows 7， ME，2000 and Mac OS...or latest Weight: about 120gPackage Included:1 x Gaming Mouse��without retail package��