ROCKSOUL MS102 MS-102LSBT Blue 2 Buttons 1 x Wheel Bluetooth Wireless Laser 1000 dpi Mouse for MAC Maximum dpi: 1000 dpi Power Supply: Two LR03 (SIZE AAA) batteries Operating Time: Approx. 1 month Distance: 33' Operating System Supported: Microsoft Windows 7, Windows Vista, Windows XP Professional or Windows XP Home Edition, MAC OSX 10.2.8