Perixx PERIBOARD-707 Plus. Device interface: RF Wireless, Purpose: PC, Recommended usage: HTPC. Frequency band: 2.4 GHz, Wireless range: 10 m. Wireless receiver interface: USB. Keyboard dimensions (WxDxH): 155 x 444 x 22 mm. Windows operating systems supported: Windows 2000, Windows 7 Home Premium, Windows ME, Windows Vista Home Premium, Windows XP Home