Power Requirements: Two LR03 (size AAA) alkaline batteries (3.0 V DC) or two NH-AAA-B2KN rechargeable batteries (2.4 V DC)
Operating System Compatibility: Windows 7 Ultimate, Windows 7 Professional, Windows 7 Home Premium, Windows 7 Home Basic, Windows 7 Starter, Windows Vista Ultimate Service Pack 2 or higher, Windows Vista Business Service Pack 2 or higher, Windows Vista Home Premium Service Pack 2 or higher, Windows Vista Home Basic Service Pack 2 or higher, Windows XP Media Center Edition 2005 Service Pack 3 or higher, Windows XP Media Center Edition 2004 Service Pack 3 or higher, Windows XP Media Center Edition Service Pack 3 or higher, Windows XP Professional Service Pack 3 or higher, Windows XP Home Edition Service Pack 3 or higher, Mac OS X (v10.2.8-v10.6), pre-installed