Specifications:
Color: Black
Material: ABS
Key number: 18 keys
Wireless transmission frequency: 2.4GHZ
Voltage: DC5V
Interface: USB 2.0
Operating distance: 0-5m
Power Supply: 1 x AAA Battery (No included)
Compatibility: windows7/XP/VISTA linux mac os9
Size: Approx. 85*21*138mm

Package Includes:
1 x Wireless Keyboard
1 x Receiver