Type: ergonomic design mouse,vertical mouse wireless Net weight: 120g DPI: 800-1200-1600DPI Power supply: Built-in battery Color: Black,Red,Gray,Blue,Purple Size: 105*75*65mm Place of Origin: China (Mainland) Product: Status Application: For Video Game, Desktop, For Office Use, For H DescriptionPower Type: Rechargeable Type: 2.4Ghz WirelessStyle: 3D Time to market: Dec-04Hand Orientation: Right Gross Weight: 270gInterface Type: USB Number of Buttons: 5DPI: 1600 Operation Mode: Opto-electronicNumber of Rollers: 1