Microsoft Explorer Mini Mouse Snap In and Go - Simply snap in the transceiver to turn off the mouse, saving battery life. Reliable Wireless - Microsoft 2.4 GHz wireless delivers a reliable connection with up to a 30-foot range. Sophisticated Design and Comfort - The glowing blue light effects and comfortable curved surfaces set your mouse apart. Go Anywhere - Microsoft Blue Track Technology combines the power of optical with the precision of laser for remarkable tracking on more surfaces.