1、AUX cable replacement for A4 B7 TTs TT A8 R8 A3, allows you to listen to music from phone/pad/mp3 (with Bluetooth function). 2、Bluetooth 5.0 version, backward compatible with 2.0 3.0 4.0 and so on. Support to answer calls, which has clear sound. 3、Support common MP3 format audio, support WMA, WAV, FLAC and other high‑quality audio format decoding. 4、Supports DSD large‑capacity transmission, ensures stable and fidelity data transfer between devices. 5、Pair your phone or tablet with the Bluetooth module, select Aux in the radio, and you can use phone to play music through the car speakers. Item Type: Bluetooth AUX Cable Material: ABS Voltage: DC12V Bluetooth: Bluetooth 5.0 Microphone Cable: Approx. 150cm/59.1in (manual measurement, please allow a slight error) Fitment: Replacement for A4 B7 TTs TT A8 R8 A3 CD Player 1 x Bluetooth AUX Adapter 1 x Microphone