1. Stable Connection: 2.4GHz wireless technology, plug and play, no driver, stable signal transmission, no delay digital keyboard. 2. Compatibility: Compatible with Android Tablet numeric keypad, Linux, Chromebook, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10 series. 3. Professional Design: Full-size 18-key keyboard. Professional design, suitable for laptops, banks, schools, businesses and so on. The keyboard of a numeric keypad has a lifespan of more than 10 million times. 4. Ergonomic Design: ABS material, compact and slim design, numeric keypad is easy to carry, 18-key numeric keypad is easy to press and quiet, ergonomic tilt and non-slip pad on the back provide optimal comfort. 5. Power Saving Technology: Power saving technology, extended lifespan, don't worry about your portable numeric keypad's battery.

Item Type: Numeric Keypad

Material: ABS

Key Life: More than 10 million times

Type: 2.4 GHz

Key: 18 keys

Product Size: Approx. 140 x 86 x 20 mm / 5.5 x 3.4 x 0.8 inches

Battery: 1 x AAA battery (excluding)

Interface: USB

1 x Numeric Keypad

1 x USB Receiver