Microsoft Optical Desktop Elite for Bluetooth 
Interface: USB
Number Of Keys: 102 keys + 25 Function keys + Tilt Wheel
Wireless Technology: Bluetooth
Palm Rest: Detachable
Mouse included: IntelliMouse Explorer for Bluetooth
Features: Bluetooth Technology, Tilt Wheel Technology, Three times the battery life, Wireless freedom, Optical technology

Weight: 4.50 lbs