This Apple iPhone 3G retractable cable is the perfect cradle replacement for Apple iPhone 3G. Save yourself the hassle of carrying all the bulky cables to support your Apple iPhone 3G Retractable Sync and Charge cable makes it simple and convenient to travel with its dual sync and charge functionality and new innovative retractable design. Operating Instructions Gently pull both the Apple iPhone 3G connector and USB connector to extend the cable. Connect the USB end of the cable to your computer and the other end to your Apple iPhone 3G. You are now ready to simultaneously charge and synchronize your Apple iPhone 3G. To retract the cable, make sure both ends are disconnected from your Apple iPhone 3G and your computer. Then gently pull both ends of the cable, and the cable will begin to retract.