Multi-Mode Wireless Ergonomic Laser Mouse • Connect via Bluetooth 3.0, 4.0 and 2.4 GHz • Ergonomic design for right hand • Intelligently switch among up to 4 devices • Adjustable 600-3200 DPI sensor, switch with one click • High-perfommance laser engine: precision on nearly every surface • 9 buttons including a side scroll-wheel • Eco-friendly 800mAh rechargeable battery • Up to 30 days with full charge • 8 customized buttons