Wireless mouse series logitech m series scanning technology laser motion sensor optical interface usb max resolution 1 000 dpi number of keys 3 suitable for laptops compatible operating systems windows xp windows vista windows 7 windows 8 mac os x linux chrome os scroll wheel feature 2 way scrolling power supply battery aa lr06 properties wireless plug play design ergonomic range 10 m frequency range 24 ghz colour black motif manufact