Features: The H20 Mini Touchpad Keyboard (Wireless) is the perfect combination of compact size and functionality This keyboard is built to last and withstand everyday wear and tear. Its wireless connectivityand USB interface to use with any computer or device. Adjustable color adjustable breathing light, creating bright and colorful effect Autoswitchbetween touchpad and keyboard with self learning function that completely eliminated usinginfrared remote control For professionals students, and anyone who wants a reliable and practical keyboard that does not take up too much space. Specifications: Model: H20 Touchpad Keyboard Connection port: With USB2.0 or above Transmission mode: 2.4GHz wireless, up to 10meters Transmission frequency : 2400-2483MHZ(16 channels) Transmission Power : Less than +4bd Power supply:Rechargeable polymer Lithiumion battery Charging voltage: 4.4V-5.25V Charging current: 300mA Operating current: less than15mA(backlit off) Sleeping current: less than 100uA Net weight: 118g Size : approx 142x75x10mm/5.59x2.95x Note: Please allow 0-2cm errors due to manual measurement. Because of the different display of each computer, the pictures may not reflect the actual color of the item. Package includes: 1PC Wireless Keypad