2.4ghz wireless connection with a USB receiver USB receiver stored inside the mouse and carrying easily USB plug and play, no driver installation required Intelligent invisible sensor light design for power saving Powered by 2pc of AAA battery, up to 6 months battery life On and off switch : yes Resolution : 1200dpi Working distance : 10 meter Dimension : 100x60x35mm System requirements : support windows 98/2000/2003/XP/VISTA/7/8/8.1/10