GoldX GX-MOUSE-WN. Device interface: RF Wireless, Movement detection technology: Laser, Purpose: office. Wireless receiver interface: USB, Receiver type: nano. Power source: batteries, Battery type: AA. Mac operating systems supported: Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion. Minimum processor: Pentium IV / Power Mac G4 1.2Ghz / Athlon 1.2 Ghz