Philips SPM5803BB is an advanced wireless twin-lens optical notebook mouse with a 5.8GHz wireless connection and a mini USB receiver. It features a DPI switch for adjusting cursor sensitivity, an on/off switch for power management, and a reset button for troubleshooting. It comes with two AA batteries and has a low battery indicator. The mouse is compatible with Microsoft Windows 2000, ME, XP, and Vista operating systems, with a recommended system requirement of 1x USB port.