2.4GHz Wireless 500/1000CPI Optical Mouse with Receiver - Dark Silver + Black (1 x AA)

- USB 1.1 interface - 2.4GHz wireless technology - 500/1000CPI resolution - Working range: 10 meters - Comes with USB receiver - Support system: Windows XP/Vista/7 - Powered by 1 x AA batteries (included) Dimensions: 4.06 in x 2.56 in x 1.54 in (10.3 cm x 6.5 cm x 3.9 cm) Weight: 2.19 oz (62 g)