Verbatim 97668 Blue 1 x Wheel USB RF Wireless Optical Nano Notebook Mouse Hand Orientation: Both Hands Power Supply: 2 x AAA Batteries Operating System Supported: Windows XP, 2000, Vista Mac OS 10.4.X and higher System Requirement: USB port Package Contents: Mouse, Nano receiver, 2 x AAA Batteries Parts: 1 Year Labor: 1 Year Electrical Outlet Plug Type: Plug Type “A� (USA, Canada, Mexico, Japan)