5 PCS Dock Extender Extension Male to Female 30pin Adapter Conventer for iPod iPhone 4 4S iPad 2 iPad 3 - Black Straight-through all 30-pins male to female extender adapter. Compact and lightweight design, easy to take and carry. Provides a compact 20mm (0.8 inch) extension - fits all protective cases. Support charge, SYNC and play music. Connect any cable or peripheral without removing your protective case. Dock with most dockable accessory without removing your case. Material: ABS Housing. Compatible with 30pin Apple iPad/ iPhone/ iPod.