Charging Dock for Iphone 3g/3gs Sync 2 in 1 Features HotSync and Charging: Charge your iPhone and sync data at the same time. Also connect the Dock to an electrical outlet using a USB Cable (not included) to charge the iPhone Use USB Cable (not included) to connect to your computer Use an AV Cable (not included) to connect to your TV and view photos or video Use a stereo audio cable (not included) to connect the dock to a stereo or speakers