This compact wireless optical 7 button mouse with a usb nano receiver picks up the slightest of movements and allows accurate control with a quick start button for starting the internet explorer the ultra small usb receiver can be permanently installed in a notebook or pc 24 ghz wireless technology for a reliable interference free and fast signal transmission with a range of up to 8 m switchable sensitivity 1000 1500 and 2000 dpi smart link technology for easy start up