Patazon Black Extension Dock Extender 30pin Adapter for iPod iPhone 4 4S
Worked for a couple days then quit. Plugs into the 4s charger jack fine but when I plug the iPhone cord into it  all it does is flop around loosely in the adapter and won't make contact to charge. So I just take my case off to charge my phone now. Nope this did not meet my needs.