Color：Blue
Material：Alloy + Plastic Connectivity
USB Version：USB 2.0 Power & Batteries
Batteries Included：No
Battery Form Factor：AAA
Battery Type：Interchangeable Software
Supported Operating Systems：Windows 2000/2003/XP/Vista/7 Specifications
Keyboard Key Count：78 Wireless Devices
Transceiver Size：Mini
Transmission Distance (Maximum)：10 meters
Transmission Frequency：2.4GHz Package
Package Type：Retail
Package Contents：1*Wireless Keyboard, 1*Wireless Mouse, 1*USB Receiver Dimensions us | metric
Depth：20 mm
Height：112 mm
Width：280 mm
Product Weight：304 g
Details:Keyboard required battery: 2*AAA
Mouse required battery: 1*AAA
Mouse Key Count: 4