Wireless Mouse, AGPtek 2.4Ghz Wireless Mobile Optical Mouse with Six Function Key, 3 DPI Levels, USB Wireless Receiver - Black 2.4GHz Wireless -- A more secure and precise experience than the traditional FM radio system with an increased working distance of up to 10m. This wireless computer mouse supports: Windows 8,7,Vista,XP,2008 Easy to Use -- Tiny USB Nano style receiver plugs into your PC and can stay there. DPI button to select your preferred cursor speed; 800/1200/1600dpi with this wireless mouse for laptop. Energy Efficient -- The auto power-off function switches off the mobile wireless mouse when the USB Nano receiver is disconnected, or the PC is switched off to give 18 months battery life from just one AA battery (NOT included). AGPtekt Tru-Wave technology provides precise, smart cursor control over many surface types. AGPtek Co-Link technology - after pairing there's no need to re-establish pairing after a signal loss or shutdown of wireless mouse for mac. USB Nano Receiver which can be stored within the back of the mouse. Infrared technology ensures smooth track over a variety of surfaces. Tiny USB receiver occupies minimal space when attached to your computer.