Metallic 908 Wireless Keyboard and Mouse • Ergonomic design with low-noise keys. Wireless Technology 2.4G. •No pairing code, no interference, plug and play. •International Qwerty wireless keyboard, without numeric keypad. •4-button mouse with bidirectional central wheel. •Especially suitable for desktop computer, laptop. •Automatic shut-off after 10 minutes of non-use. Mouse specifications: Dimensions and weight: 42 g. 11 x 5.5 x 2 cm Buttons: 4 Mouse Wheel: Two-way scrolling Reception distance: 10 meters Battery: 2 AAA batteries (not included) 2.4 GHz wireless signal Polling rate: 20-2000 Hz 1000-1200 DPI Voltage: 3V Keyboard specifications: Average and weight: 240 g 28.5 x 13.5 x 2 cm Reception distance: 10 meters Battery: 2 AAA batteries (not included) 2.4 GHz wireless signal Frequency: 2402 MHz - 2480 MHz Voltage: 3V Current: 1.5mA ABS, metal alloy.