Wireless 2.4G Mini USB 18 Keys Number Pad Numeric Keypad Keyboard For PC Laptop
Main Features: 
(1) EASY TO USE: The number pad adopt 2.4 GHz wireless technology, plug and play numeric keyboard, no device drivers needed, fast data transmission, almost no delays, and dropouts and it has up to 33FT working range, power Supply by 1* AAA Battery ( not included )
(2) COMPATIBILITY: Works with PC, desktop computer, laptop, notebook. The numeric keyboard compatible with Windows 98 / 95 / NT / ME / 2000 / XP / Vista / 7 / 8 operating systems. The number pad is NOT fully compatible with Macbook OS system, number keys part works fine
(3) ERGONOMIC: ABS material, slim design number pad, this Numeric Keypad is portable and has built-in USB receiver storage space in USB number pad, no worry about lost. Ergonomic tilt and anti-slip pads on the back provide optimum comfort.
(4) PORTABLE: Lightweight and compact 18 keys number pad, you can easily put the number pad into your bag and take it anywhere
(5) NON-SLIP: There are two non-slip mats on the back of the number keyboard, which prevents it from sliding around your desk when in use
Specification:
Item Name: Wireless Numeric Keypad
Number of keys: 18Keys
Interface: Wireless 2.4G
Voltage: DC1.5V
Dimension:14*8.5*2 cm
Operation Range: 10M (Without signal disturbance and no direction limit)
Power: 1*AAABattery (Not Included)
SystemSupport: Windows XP/7/8/Vista, Linux, mac os 9, etc.
Package Includes: 
1* Wireless Numeric Keypad 
1* USB Receiver