4pmla Headphone Earphone Extender Jack Adapter High Digital Fidelity Female Aux Jack Converter Using high-tech materials to make sure long lasting using, More wear-resisting and corrosion resistance, enhancing the anti-interference ability. Copper wire core provides you with high-speed and stable signal transmission. High quality Aluminum alloy oxidation shell is more wear-resisting and corrosion resistance, enhancing the anti-interference ability, high grade material with quality surface treatment. You will be able to keep playing music using your original headphones / aux cable. Just plug this in your CellPhone and enjoy your music or movie with car