This Wireless mouse is compatible with Win 7， Win 8， XP， Linux，Vista systemsErgonomic design， reduce hand fatigue， give your hand a rest.Specially designed for whose hand has repetitive strain injuries or for preventing the harm of hand.Its vertical shape will support your hand comfortably all day long.Comfortable and durable to use.2.4GHz wireless technology， the maximum effective working distance can up to 15m.Support adjustable 3 mode DPI settings: 800， 1200， 1600， easily fits for most occasions.Built-in 400mAh battery， long lasting time， can use for 30 - 60 days when the power is full.USB charging interface， convenient to use.Working distance: up to 15mBattery: 400mAhSize: 101 x 71 x 80mmAvailable Colors: silver， purple， grey， blue， blackPackage:1 x Wireless Mouse1 x USB cable1 x Receiver