Microsoft Wireless Mobile Mouse 4000 Brand New Blue Track Technology - Works on virtually any surface including granite counter tops, carpets, and wood tables.Nano Transceiver - Leave plugged in when you?re on the go, or stow in mouse.4-way scrolling and 4 customizable buttons - Additional advanced features with included software.Includes video effects Up to 10 months? battery life - Battery status indicator lets you know when your battery is running low.3-Year limited hardware warranty.Battery status indicator tells you when battery power is low.Easily switch between open windows with the click of a button.MICROSOFT WRLS MOBILE MSE 4000 MAC/WIN USB BLUETRA.ITEMID: 882224856430.Electronics/Digital Cameras/keyboards/input Devices ◦