Perixx PERIPRO-705. Wireless technology: RF, Frequency band: 2.4 GHz, Wireless range: 10 m. Wireless receiver interface: USB, Receiver type: standard. Colour of product: Black. Dimensions (WxDxH): 44 x 104 x 15 mm. Windows operating systems supported: Windows 2000, Windows 7 Home Premium, Windows ME, Windows Vista Home Premium, Windows XP Home