Ergonomic design 1600 DPI Lightweight Portable Design Wireless Connectivity USB nano-dongle included The Acer Wireless Mouse is small and lightweight, making it perfect not only at the desk, but on the go too. With its ergonomic design it will fit perfectly in your hand, making it comfortable for long computing sessions without fatigue or pain. Mouse Frequency band 2.4 GHz Programmable mouse buttons No Buttons type Pressed buttons Buttons quantity 3 Scroll type Wheel Movement resolution 1600 DPI Movement detection technology Optical Device interface RF Wireless Purpose Office Design Product colour Black Form factor Ambidextrous Power 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 80 g Height 35 mm Depth 95.3 mm Width 58.4 mm Packaging data Package height 170 mm Package weight 140 g Package depth 325 mm Package width 255 mm Quantity per pack