Microsoft XVA-00013. Device interface: RF Wireless. Movement detection technology: Laser. Minimum processor: Pentium, Processor clock speed: 233 MHz, Minimum RAM: 128 MB. Battery type: AAA. Minimum system requirements: USB, Compatible operating systems: Windows XP Pro/x64/Home/MC/Tablet PC/2000 Mac OS X v10.2.x1, v10.3.x2, v10.4.x