Headphone Jack Dual Aux Audio Adapter Earphone Stereo Port Headset Adaptor Connector Splitter [Silver & White] Supports data synchronization Supports the audio headset's remote control and microphone functions. The adapter allows you to charge Phone and play music at the same time. Through the headphone changer to control the volume, play music and answer or end the call,Allows you to listen to music or phone while charging. Perfect design:This is a thoughtful and enjoyable design for any music lover, and now enjoy car music whenever and wherever possible. Powerful features :Supports incoming call + volume control + charging + music listening. (Note - The charging port symbol and the music gate symbol are distinguished.) Excellent service: If you have any questions, you can contact us anytime, anywhere, we will try our best to provide you with quality service.