This is a set of headphone adapters, made of high quality materials, durable and can be used for a long time. Compact and portable, no burden to go out, more convenient to go to work, suitable for business travel. With this headphone adapter, you can charge your phone and listen to music at the same time. Features -Material: TPE, alloy. - Compact and portable, no burden to go out, more convenient to go to work, suitable for business travel. - Made of high quality materials with stable performance and long service life. life. - No driver, plug and play, direct insertion use, convenient and quick operation, simple. - With this headphone adapter, you can charge your phone and listen to music at the same time . - 3.5mm interface, compatible with universal mobile phone, so that the earphone does not waste, also do not need to buy high-priced special type-C earphones.