Microsoft 1850 Wireless Mouse BLACK - USB - Scroll Wheel Designed for Comfort and Portability The Wireless Mobile Mouse 1850 is designed for life on the go, offering wireless freedom and built-in transceiver storage for ultimate mobility. Comfortable to use with either hand and a scroll wheel for easy navigation makes this mouse the ideal device for your modern, mobile lifestyle. Scroll Wheel Move through documents and webpages quickly. Comfort and Portability Compact design to fit in your hand and go wherever you go. Plug-And-Go Nano Transceiver Leave the nano transceiver plugged in when you're on the move, or stow it in the mouse. Comfortable in Either Hand Use your mouse with your left or right hand. Ambidextrous design makes it comfortable either way. Up to 6-Month Battery Life Use your mouse for up to six months without having to change batteries.