Keyboard:
1: 2.4GHz RF Wireless Technology
2: Intelligent Frequency Hopping Technology
3: 10 meters stable & effective distance
4: USB Port, nano receiver, plug & forget
5: Intelligent energy saving
6: 10 million times keystroke lifetime
7: Build-in opticalTrackballl for Easy Control of Mouse Function
8: 14 convenient Internet/Multimedia Hot Keys
9: Keyboard Dimensions: 360 x 160 x 35mm
10: Compatible with Windows 95/98/Me/NT/2000/Vista/Win7

Trackball:
- Optical trackball
- 1000 DPI
- 3 Mouse Buttons
- Scroll Wheel