Perixx PERIDUO-709. Device interface: RF Wireless, Purpose: PC, Recommended usage: Office. Movement resolution: 800 DPI, Movement detection technology: Optical. Frequency band: 2.4 GHz, Wireless range: 10 m. Wireless receiver interface: USB, Receiver type: nano. Windows operating systems supported: Windows 2000, Windows 7 Home Premium, Windows ME, Windows Vista Home Premium, Windows XP Home