Features: 1. Low power and current consumption design, making battery used more longer 2. Ergonomics design, comfortable to operate 3. Low voIrage aIarm indicator keeps reminding replace battery 4. Human oriented design, increasing a series of multimedia keys 5. Ultra-thin keys, comfortable to operate 6. Multiple auto dormancy function, upplug receiver or shutdown, mouse will immediately fall into sleeping, saving more power Specifications: Interface: Wireless, RF 2.4 G Key quantity: 3 keys Mouse Button: 1600DPI Keyboard Power Supply: 2 x AAA Batteries(not included) Mouse Power Supply: 1 x AAA Batteries(not included) Compatibility: Desktops and Laptops Material: ABS Plastic Color: Black, white Frequency: 2402MHz - 2402MHz Keyboard Voltage: 3V Keyboard Current: 1.5mA Keyboard Dimensions: (11.22 x 4.72 x 0.59)’ / (28.5 x 12 x 1.5)cm (L x W x H) Mouse Dimensions: (3.15 x 1.57 x 0.79)’ / (8 x 4 x 2)cm (L x W x H)