Patazon Black Extension Dock Extender 30pin Adapter for iPod iPhone 4 4S
Really annoying to use with a life proof case. It has to line up exactly and there is most certainly a learning curve...even then, it's really just a pain to use daily. That's really my biggest complaint since as far as it actually working - it serves the purpose of letting me use my docking station instead of a cable. I've been using it still a cpl months later because i really don't know what else i would use.