Mouse Specification DPI 1000 Connectivity 2.4 GHz wireless Sensor Type Smooth optical tracking Scrolling Micro-Precision Scrolling with Tilt scroll function Number of Buttons 5 Battery Life 1 x AA (included) Lasts for up to 18 months Range 10 m Physical Specifications Weight 93.00g Width X Depth X Height 57.00mm x 39.00mm x 95.00mm