Wireless Mouse 2.4GHz game Ergonomic Design Vertical mouse 1600DPI USB Mice Features: new and Rechargeable 2.4G Wireless Ergonomic Optical Vertical Mouse Ergonomically designed,Reduce fatigue effectively Third block DPI to adjust,up to 1600 DPI resolution Wireless transmission up to 10 meters operating distance Intelligent connectivity, no need to,plug-and play Ergonomically designed,comfortable to use New non-delay technology With an ON/OFF Intelligent power saving management Low power consumption Compact and lightweight, easy to carry Decent and modern design Ideal laptop and desktop companion for home and office use Specifications: Device Type: Wireless Optical Vertical Mouse Pointing Device Connectivity Technology: Wireless Pointing Device Wireless Technology: Radio Frequency range: Up to 10m Wireless Operating Frequency: 2.4GHz Mode: Optics Resolution: 800DPI/1200DPI/1600DPI Number Buttons: 6 Buttons: Left button,Right button,Rolling wheel,Page Up,Page Down,DPI Key Scroller Type: Scroll systems: 98, 2000, ME, XP,, Win 7 and more Power:2* AA Battery Material: ABS Color: Black,white Package includes: 1 * Wireless Optical Vertical Mouse 1 * USB Receiver