Combo kit includes a 30 pin dock extension, a audio extender cable, and a black jack cover plug.
These adapters are dependable and durable.
They are made to last and function flawlessly. To assure no damage due to a faulty seal Please follow these steps to insure the seals of the adapter are seated correctly:

Simply Take Your Phone Out Of Your Case Plug Your Adapter Into The Audio Jack Hole And Submerge It Under Water For 30 Min.
Unscrew The Jack Cover From The Keeper And Simply Hand Tighten It In The Same Spot
When HeadPhones Are Removed & Submerge Under The Water Again .
IN THE UNLIKELY EVENT YOUR CASE TAKES ON WATER ON THE INSIDE CONTACT ME IMMEDIATELY So We Can Replace The Faulty Part! Thank You