Sandberg Wireless Numeric Keypad 2 - General: 2.4 GHz GFSK technology

Sandberg Wireless Numeric Keypad 2 - General: 2.4 GHz GFSK technology | Working distance: up to 10 metres | Requires 1 x AAA battery | Keypad: Power consumption: Max. 22 mA (w/o downstream device) | Key switches: Membrane switch with tactile feedback | Keycaps type: Low profile | Switch Life: 3 million cycles | Receiver: USB interface