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 audio source Stream audio 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 Audio 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 audio source, then play music from your phone Package includes: 1 x Bluetooth Module 4 x Installation Tools Note: 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 listed car models is not guaranteed. Please verify the connector fits your vehicle before purchase. Stereo removal may be required for installation. Content limited to items listed; other products not included. Color may vary slightly due to lighting and screen display differences. Measurement error allowed: +/- 1-3 cm.