1. Supports bluetooth 5.0, low power consumption, dependable to use. 2. Easy to install, just plug and play, no need complicated tools. 3. Allows you to hear music from your phone/tablet/mp3 player. 4. Used for wireless transmission of music, navigation, for and phone, etc. 5. Button control on radio/steering wheel for easy operation. Select play on the radio and it start playing automatically. If you change it, it stop playing. Condition: Item Type: Audio Adapter Bluetooth Music Adapter: For wireless transmission of music, navigation announcements, for and phone calls. Button control on the radio / steering wheel. Playback starts automatically when on the radio, stops when changing to e.g. radio. Speakerphone: Answer / end calls using the forward / back button. In radio mode, the CD changer must be manually, the call is automatically accepted. Supports up to Bluetooth 5.0 for low power consumption Fitment: Fits for A2 2001-2006 Fits for A3 8L 8P 1998-2006 Fits for A4 B5 B6 B7 1998-2006 Fits for A6 4B C4 S6 2001-2004 Fits for A6 ALLRoad 2000-2005 Fits for A8 S8 D2 1999-2003 Fits for TT 8N 1998-2006 Installation: The adapter is invisibly connected to the back of the radio. No additional wiring for the power supply necessary. The included Micro-can be optimally placed with a 2.5m cable. The radio automatically recognizes it as a CD changer, no coding required. Color: As Shown Material: ABS Package Contents: 1 x Audio Adapter set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.