Model No : Microsoft Arc USB Keyboard

Key Features
Clean lines and eye catching shape : Show off an eye-catching shape that looks as much a piece of art as a high-tech tool.
Lightweight and Compact  : Use the keyboard anywhere, taking advantage of the comfortable and portable design.
Stowable Nano Transceiver  : Leave the transceiver plugged into your PC, or stow it underneath the keyboard when you want to pack it for travel.
2.4-GHz Wireless  : Freely roam around the room with a reliable wireless connection of up to 9 metres/30 feet.

System Requirements
Windows-based computer | Macintosh-based computer

Computer/Operating System
Requires a PC that meets the requirements for and has installed one of these operating systems: Windows 7, Windows Vista, Windows XP.

Other
USB only

Three Year Warranty.