Inca IWM-200R. Device interface: RF Wireless, Movement detection technology: Optical, Purpose: Office. Frequency band: 2.4 GHz, Wireless range: 15 m. Wireless receiver interface: USB, Receiver type: nano. Power source: Batteries, Battery type: AA. Compatible operating systems: Microsoft Windows 2000, Windows XP, Windows Vista, Windows 7, Mac 10.0 +