KOSDFOGE Wireless Numeric Keypad - 22 Keys Ergonomic 2.4G Dual Mode

Specification: Item Type: Wireless Numeric Keypad Material: ABS Working Current with Buttons: <7.5ma Touchpad Size: Approx. 78 x 110mm / 3.1 x 4.3in Standby Current: <1.6mA Sleep Current: <25uA Working Distance: 10m Sleep Time: 30 Minutes Working Voltage: 3.0-4.2v Charging Current: <1A Key Key Layout: 22 Keys Wake Up Method: Button Wake Up Built in Lithium Battery Capacity: 500mah (included) Package List: 1 x Wireless Numeric Keypad 1 x 2.4G Receiver 1 x USB Charging Cable 1 x User Manual