Deluxe CRADLE for US T-mobile HD2 with 2nd Battery Charging Slot and 3.5mm Audio out (Mono) Sleek and stylish Synchronise and charge your device Built in micro usb socket allows you to connect to PC with any mini usb cable Features 3.5mm audio out for any stereo earphone and speaker Let your device nicely sit and charge both of your phone battery and additional battery