Type: 3G Bluetooth 5.0, 4 times speed Function via Bluetooth-enabled devices No functional limitations of the car radio Allows you to connect an external o source Stream o from your smartphone to your car stereo Pair your phone with the Bluetooth module and select Aux on your radio Easy installation, Plug & Play Connect via Bluetooth without complicated wiring Specification: Type: Bluetooth o Receiver Material: ABS Color: Black Compatibility: For A3, A4 B8, B6, A6 C6, B7, C6, C5, C7, Q5, A5, A7, R7, S5, Q7, A6L, A8L, A4L Installation: 1. Connect the black cable to the 3G system. Ensure Aux is enabled (switch to "media" and "aux") 2. Plug into the CD player jack (confirm correct socket), pair your mobile phone with the Bluetooth module, select aux o source, then play music from your phone Package includes: 1 x Bluetooth Module 4 x Installation Tools Note: Please confirm your car has an AMI Music Interface, typically located in the armrest box or storage compartment. Without this interface, the product will not function. Compatibility with the listed car models is not guaranteed for all model years. Please verify the connector fits your vehicle before ordering. Stereo removal may be required for installation. Content limited to items listed; other products not included. Color may vary slightly due to lighting and display settings. Measurement error allowance: +/- 1-3 cm.