Verbatim 96677 Wireless Rechargeable Desktop Laser Mouse Re-chargeable - Save Buttons. Dock, recharge and go. Laser - Precision movement and control with laser sensor tracking. Ergonomic - Ergonomic design for enhanced comfort and usability. Multi-Button - Enjoy one-click access to key functions with 3 programmable buttons. System Requirements: USB 2.0 (Also compatible with USB 1.1 ports) Windows XP, 2000, Vista Mac OS 10.4.X and higher