Material; plastic + metal product name: headphone charging 2-in-1 USB cable adapter connector TPC male to 1 3.5MM female and one TPC female, package size (L * W * H) 21x 5 x 2 cable shape round Plug diameter 3.5mm / 0.14" Total length (approx.) 20cm / 7.9" ProductTypeForYW audio and video interface cable Description: TPC bus can charge mobile phone or tablet. Charging one side A 3.5mm female audio splitter is compatible with any 3.5mm female jack. Suitable for microphone addition (input) and PC/laptop audio (output) Connect headphones and external speakers to the computer at the same time