1、Ergonomic Design: The ergonomic 7.5 degree angle, combined with the concave arc of the keycap, effectively relieves hand fatigue when using the computer for a long time. 2、Quick Connection: The numeric keypad has BT and 4G dual mode, one key fast switching, fast connection. 3、Touchpad: With touchpad, large multi gestures touchpad, left and right press buttons, easy to use. 4、Plug and Play: Automatic identification for Windows, for Android, for OS X system, plug and play, easy to operate. 5、Small and Portable: Lightweight, small, portable and easy to carry, it is the perfect keyboard choice. 1 x Wireless Numeric Keypad1 x 2.4G Receiver1 x USB Charging Cable1 x User Manual Item Type: Wireless Numeric KeypadMaterial: ABSWorking Current with Buttons: < 7.5maTouchpad Size: Approx. 78 x 110mm / 3.1 x 4.3inStandby Current: < 1.6mASleep Current: <25uAWorking Distance: 10mSleep Time: 30 MinutesWorking Voltage: 3.0- 4.2vCharging Current: <1AKey Key Layout: 22 KeysWake Up Method: Button Wake UpBuilt in Lithium Battery Capacity: 500mah (included)