Plug and play,it does not need install device drivers.
up to 10 meters working range,Compatible with Win 7 8 10 Xp 2000 Vista, iOS System.

Automatical: Standby sleep mode enabled automatically, no power button needed of numeric keypad for laptop
Numeric keyboard with 18 keys, Ideal for notebooks without a number pad Keys operate smoothly.
Reliable Customer Service - Every purchase is backed with a 100% Satisfaction Guarantee. If you're not thrilled, simply contact our reliable customer service team and know you will receive unmatched personal assistance.
Effective Range
this number keypad is up to 10m working range.Operating frequency: 2.4 G technology.
Portable size
18-key Wireless Numerical Keyboard.Hibernation mode enables automatically, no power button needed.
Easy to use
Digital keyboard with 18 keys, Ideal for notebooks without a number pad Keys operate smoothly and quietly.
Installing the batteries
this keyboard use 2pcs AAA alkaline battery.

Specification:
Product size: 132 x 89 x 18.5mm
Weight: 93g
Effective Range: 6-10 Meters
Operating frequency: 2.4 GHz technology
AAA batteries: Current 5V

Package list:
1 x Wireless Keypad
1 x Mini Receiver