CableJive dockStubz Case Adapter for iPhone, iPod, and iPad; Passes Full Functionality from a Charge or Audio Dock to Your Phone; Connect your iPhone 4/4S to a 30-Pin Accessory and Leave your Case On

Fits every case, cover, or skin (including Apple's Bumper, Lifeproof, and Otterbox)^Works with all iPod 30-pin compatible docking stations and accessories^Passes all functionality through to your iPhone, iPod, or iPad^Small, compact and travel friendly (1.3-Inch/3.5 cm)^Compatible with all iPhone, iPod, and iPad models (except the Shuffle)