30 PIN Dock Extender Cable Sync Data Charge for iPhone iPod White Apple 4g 4g, 4s etc You can connect your apple device with the dock cable and sync your phone and compatible PC by this extension cable Small diameter flexible cable provides connection pathways for power audio output USB data sync play controls accessory power and composite video Dock Extender Cable allows you to dock your iPod or iPhone from a distance, or while in a case