iTeck Dock Extender Converter 30-Pin Pass Through Adapter for iPhone 4 4S iPod and iPad 2 This 30Pin adapter passes all functionality through to your iPad, iPhone & iPod. Provides a compact extension, fits all protective cases covers, or skin on the planet (except Apple's iPhone 4 bumper case). Dock with most dock cable accessory without removing your case. Compact and lightweight. Connect any cable or peripheral without removing your protective case Note: In case this accessory does not function, please send message with your Order ID number