A4TECH Wireless Keyboard & Mouse Combo - 3000N

Receiver: RN-10D ( Grey ) Connector: USB Frequency: 2.4G Hz Operating Range: 10 - 15 m Keyboard: GK-85 Keycaps: Traditional Hotkeys: 12 Fn Hotkeys Character: Laser Engraving Adjustable Keyboard Legs: Yes Rating: 3 V / 2 mA Battery: 2 AAA Alkaline Batteries Dimension: 454 × 153 × 30 mm Mouse: G3-200N Report Rate: 125 Hz Sensor: Optical ( Infrared ) Resolution: 1200 DPI Rating: 1.5 V / 4 mA Buttons No.: 3 Ergonomic Design: Symmetric Size: Small / Middle / Big Hands Receiver Storage: Yes Battery: 1 AA Alkaline Battery Demension: 107 × 60 × 38 mm System Requirements：Windows XP / Vista / 7 / 8 / 8.1 / 10 Keyboard Weight: 559 g (w/ battery) Mouse Weight: 81 g (w/ battery)