Type: 3GBluetooth 5.0, 4 times fasterFunction via Bluetooth-enabled devicesNo functional limitations of the car radioAllows you to connect an external audio sourceIt is possible from your smartphone to your car stereo to streamPair your phone with our Bluetooth module and select Aux from your radio.Simple installation, Plug & Play.Easily via Bluetooth without complicated code connections.Specification:Type:Material: ABSColor: BlackCompatibility:For A3 A4 B8 B6 A6 C6 B7 C6 C5 C7 Q5 A5 A7 R7 S5 Q7 A6L A8L A4LInstallation:1. Black cable connected to 3G system.Make sure your aux is activated in green (switch \"media \" and switch \"aux \")2. Connect to the CD player's jack (confirm the corresponding jack), the mobile phone is connected to the Bluetooth module, aux audio source selection, you can play mobile phone music.Package includes:1 x Bluetooth4 x Installation toolsNote:Please confirm that your car has an AMI music interface, it is usually in the armrest box or storage box, without this interface you will not be able to use this product.We do not confirm 100% compatibility with the above car model years.Please make sure the connector fits your car before ordering it.You must remove the stereo to mount this kit in your car.Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.