Adapter to Headphone Audio Adapter, Dual Port Dual Headphones Audio Lightweight, retractable design, easy to carry. It can be placed in bakpack and handbag when going out, no need for additional audio software, just plug the headphones into the jack to enjoy the music. Supports up to 24-bit / 48 kHz audio output, supports data synchronization and supports remote control and microphone functions of audio headphones. Support mobile phone upgrade 11 upgrade chipset, so that the adapter runs at 10.3 or higher. 100% copper core, providing you with high speed, stable signal transmission and lossless digital sound quality. The high-quality aluminum alloy oxide shell is more wear-resistant, corrosion-resistant and enhances anti-interference ability. Let you enjoy clear, realistic sound and a fast and fulfilling experience. Support call & volume control & charging & music listening. (Note - distinguish between the charging port symbol and the music gate symbol.) For any music lover, this is a thoughtful and enjoyable design, and now enjoy car music anytime, anywhere. This adapter is the best gift for yourself!