Wall AC Charger USB Sync Data Cable for iPhone 4, 3GS, and iPod
It didn't work. I wrote a letter to let Amazon know the charger didn't work, to no avail. My money was wasted (almost). DO NOT buy one of these chargers. Good thing I work in electronics with Techs that know how to fix shoddy products. The Techs at work took it apart & the wire was broke off in the plug itself! They soldered it together & now it works! Then I had to get the same Tech to glue in the cable, because, it came out of the housing! SUCKS!