Microsoft Wireless Mobile Mouse 3000 Nano Transceiver - Leave plugged in when youre on the go or stow in mouse. Battery life indicator - Use your mouse without power interruption for up to 10 months. Power status indicator lets you know when your battery runs low. 2.4 GHz - Reliable connection with up to 30-foot range. 3 buttons, scroll wheel, 1000 dpi, on/off switch