Lenovo 4Y41C33791 numeric keypad Universal RF Wireless Grey

Pointing device: No
Purpose: Universal
USB hub: No
Frequency band: 2.4 GHz
Device interface: RF Wireless
Keyboard number of keys: 21
Key switch type: Tactile
Keys operating life: 10 million characters
Product colour: Grey
Ergonomic design: Yes
Power source type: Battery
Operating relative humidity (H-H): 20 - 95%
Operating temperature (T-T): 0 - 40 °C
Width: 132.8 mm
Depth: 85 mm
Weight: 109 g
Height: 13.5 mm
Windows operating systems supported: Yes
Package height: 43 mm
Package weight: 277 g
Package width: 180 mm
Wireless receiver interface: USB
Harmonized System (HS) code: 84716060
Warnings: Do not disassemble the keypad - risk of electric shock., Follow local regulations for the disposal of electronic equipment., Keep away from water and other liquids.