Computer mouse. Silver-coloured. In form of 300 SL. 2.4 GHz wireless technology. Plug & play. USB nano receiver. High-resolution optical sensor with switchable sensitivity (between 800 dpi and 1600 dpi). Working radius of 10 metres. LED headlamps and tail lights with On/Off button. Supplied with 1 x AA battery – will last several months when mouse is used without LED headlamps and tail lights. 2-year guarantee. System requirements: Windows® 8, Windows® 7, Vista, XP, 2000, ME or Mac® OS X.