The features that matter most in your office are comfort and reliability. And the Kensington Pro Fit 2.4 GHz Wireless Full-Size Mouse delivers with plenty of both. The full-sized right-handed design feels great in the hand while the 2.4GHz wireless technology is ideal for crowded office environments.- Ergonomic design matches natural hand curvature maximising comfort during prolonged use- Requires 2 x AA batteries (included)- PC and Mac compatible- High definition optical sensor delivers smooth cursor control and precise tracking- Adjustable dpi settings for smooth cursor control and precise tracking (800 dpi 1200 dpi)- Secure 2.4Ghz wireless technology reduces risk of interference and is ideal for office environments- Dedicated thumb controlled back and forward web browser navigation reduces time required to comlpete web browser tasks- Clickable scroll wheel is ideal for speeding through documents- Sculpted side panels with soft rubber panels and contoured buttons maintain comfort and grip- Reliable Plug & Play operation with USB connection- Professional black and blue corporate finish complements Pro Fit keyboards