ZELOTES F-35 6 Buttons Wireless Rechargeable Mice 2400 DPI Adjustable Ergonomic Optical Vertical Mouse Features: Ultra-precision roller. Optical technology is suitable for most surfaces. Ergonomically designed for long-term use without fatigue. Built-in heavy iron, comfortable to move and stable in movement. Specification: Type: Wireless Rechargeable Vertical Mouse Button: 6 Buttons with Scroll Wheel Tracking System: Optical Maximum DPI: 2400 DPI Adjustable DPI Switch: 1000-1600-2400DPI Light Changes: Blue Cold Light Battery: Built-In 800 mAh Rechargeable Battery Switch Life: 5 Million Cycles Size: 110 X 72 X 75mm/4.33 X 2.83 X 2.95" Weight: About 130g Compatible systems: Compatible with Windows XP, Vista, Windows 7, ME, 2000 and MAC OS ... or the latest version Users Target: High-End Players, Game Professional Players. Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 X Vertical Mouse 1 X USB Receiver 1 X 1.5m Charging Cable 1 X Manual Ultra-precision roller. Optical technology is suitable for most surfaces. Ergonomically designed for long-term use without fatigue. Built-in heavy iron, comfortable to move and stable in movement.