DAEETO Headphone Jack Adapter 2 in 1 Adapter with Earphone adapter ( black) Plug and Play: No extra software, you just need to plug and enjoy fidelity sound quality. Allow you to use your existing headphones Multi-function: You will be able to charge your phone and listen to music with a headphone / earphone at the same time using the adapter Efficient transmission : 100% Copper wire core offers digital sound quality and ensure the stability of the transmission. You just need to plug and enjoy much clear and fidelity sound quality UNIQUE DESIGN: Made by original chip and high quality material, luscious, textured for direction and durable for use. Limited and protable design is easy for you to carry around. High-quality material to ensure charging speed: Using high-tech materials imported from Japan to make sure long lasting using and fast charging.