The Trust Mydo Silent Click Wireless Mouse is as comfortable as it is quiet, reducing key-click sounds by at least 90%. Which means you are free to work in peace, at home or at the office. The mouse has a speed select button (1000, 1400, 1800 dpi) that lets you control mouse sensitivity for the control that best suits you. A storable micro-USB receiver means you are always ready to plug in and get to work. Meanwhile, an on/off power switch better enables you to conserve battery life. The 10m wireless range gives you freedom to sit and work where you like.