This number keypad is up to 10m working range.Operating frequency: 2.4 G technology.
18-key Wireless Numerical Keyboard.Hibernation mode enables automatically, no power button needed.
Digital keyboard with 18 keys, Ideal for notebooks without a number pad Keys operate smoothly and quietly.
This keyboard use One AAA battery.
Product size: 140 x 86 x 30mm
Effective Range: 6-10 Meters
Operating frequency: 2.4 GHz technology
1 x AAA batteries