Combine all the functions of charging, audio, call, and wire control with this iPhone 4-in-1 Adapter. The new one-piece headphone splitter design enhances the ruggedness and stability of the product and reduces the phenomenon of plugging off during use, letting you enjoy listening to high-quality sound. Featuring upgraded functions, this adapter has an elongated pin for in-case use, aux input for listening to music & taking calls, and a fast-charging port. Made with high-quality aluminum alloy material, you can enjoy immersive games & music and ensure efficient & stable data transmission.