Targus Mouse Compatible with PC, Mac and Netbooks; Windows 8, 7, Vista, XP; Mac OS X v10.8, Mac OS X v10.7 2.4GHz technology reduces cordless interference/delays and works up to 33 feet away; Ergonomic design offering support for the palm and reduces strain; Contoured for maximum comfort ,600 DPI optical sensor Micro USB receiver stays plugged in the computer or can be stored inside the mouse