With phone manufacturers trying to save space to make phones smaller, they are reducing the number of ports on a phone to just one USB C port. This means that adapters have to be purchased in order to use accessories etc. The USB Type C 3.5mm audio adapter with Power Delivery will allow you to connect 3.5mm stereo equipment to your USB type C (only) phone/tablet. The Power Delivery allows your device to be charged at a quick rate. The 3.5mm socket is used for audio output only.PLEASE NOTE: This audio adapter will not work with phones/tablets etc that have a 3.5mm port as the phones cannot detect USB C adapter and defaults to speaker. USB Type C 3.5mm audio adapter with Power Delivery 3.5mm audio port Supports max 384KHz sampling rate Type C female port supports max PD 60W Passive