Brand RAJFOO Model G5 Quantity 1 Color Black Material ABS Connection Method 2.4G Wireless Connection Type USB 2.0 Tracking Method Optical Resolution 1000~1600 dpi Supports System Windows 2000 / XP / Vista / 7 Other Refresh rate: 6400fps/s; Button life: 8 million times; Max acceleration: 15G; Resolution: 2 modes 1000~1600dpi; Suitable for laptops and desktop computers; 6 buttons; Long battery life power: 0.5mA; Energy-saving; Auto-sleeping: 0.5mA (light became dim) 15~45UA (light flashing) auto power off if not use for 30mins; Stable and anti-interfere precise locating Operation Distance 10~15m Power Supply 1 x AA battery (included) Packing List 1 x Mouse 1 x AA battery 1 x Nano receiver