Description:1. Stable connection - USB 2.0 wired / wireless technology, plug and play, no device driver, stable signal transmission, no delay digital keyboard, TPE - protection line, maximum working 1.25 m.2. Compatible - the numeric keypad is compatible with Android tablet computers, desktops, etc.3. Full size 18 key keyboard - professional 18 full size and concave 10 key design, suitable for socks, laptops, banks, schools, companies, etc. The service life of the key cap of the numeric keyboard exceeds 10 million times.4. Ergonomic design - ABS material, small and ultra-thin design, easy to carry digital keyboard, 10 key USB digital keyboard is easy to press and mute, and the ergonomic tilt and anti-skid pad on the back provides * good comfort.5. Power saving - without battery, it automatically enters sleep / sleep mode to save power and prolong service life. There is no need to worry that the number keyboard of notebook computer will run out of power.Specification:Specification: 2.4G wireless chocolate numeric keypadKey life: more than 10 million timesBattery: 1.5 V (excluding)Color: BlackMaterial: ABSProduct size: Approx.14 x 9 x 2 cm/5.51x3.54x0.78 inchesNet weight: 85g bare metal (excluding packaging weight) 102GSupport system: Windows98 / 95 / NT / me / 2000 / XP / Vista / 7.0 / 8.0Packing list : 1piece keyboardPackage Includes:1piece keyboard