Reduces key-click sounds with at least 90% 10m wireless range (2.4 GHz) Speed select button (1000/1400/1800 DPI) Storable micro USB receiver On/off power switch For left and right hand use Comfortable wireless mouse with advanced silent buttons Mouse Number of movement resolution modes 3 Customizable movement resolution Yes Recommended usage Universal Buttons type Pressed buttons Buttons quantity 4 Number of scroll wheels 1 Scroll type Wheel Movement resolution 1800 DPI Movement detection technology Optical Device interface RF Wireless Purpose Office Design Product colour Black Form factor Ambidextrous Ergonomics Wireless range 10 m Power Service life of battery 6 month(s) Battery type AAA Number of batteries supported 2 Power source Batteries System requirements Mac operating systems supported Yes Windows operating systems supported Yes Weight & dimensions Weight 75 g Height 104 mm Depth 35 mm Width 70 mm Packaging data Package height 170 mm Package weight 188 g Package depth 40 mm Pa