Usage Tips:Features: 1.Bluetooth 5.0 version, backward compatible with Bluetooth protocol of 2.0 3.0 4.0 version. 2.Support common MP3 format audio, supports WMA, WAV, FLAC and other high?quality audio format decoding. 3.Support DSD large?capacity transmission, ensure stable data transfer between devices, hifi sound quality. 4.Match your phone or pad to bluetooth module, and choose Aux from your radio, then you can use your phone to play music through car speakers. 5.This adapter allows you to listen to music from your phone/tablet/mp3 (they should have Bluetooth capabilities). 6.Support to answer the phone, the sound effect is clear. Plug and play, easy to install, convenient for using.Specification:Item Type: Bluetooth AUX AdapterMaterial: ABSVoltage: DC12VBluetooth: Bluetooth 5.0Microphone Cable Length: Approx.150cm/59.1in (manual measurement, please allow a slight error) Fitment:Fit for (E60): 5-Series: 525i, 525it, 528i, 528it, 530i, 530it, 540i, 540iT & M5 (Sedan and Touring) 2004 - 2010 Fit for (E63) (E64): 6-Series: 630Ci, 630i, 645ci, 650i, M6 (Coupe and Cabriolet/Convertible) 2003 - 2010 Fit for (E65) (E66): 735i, 735li, 740i, 740li, 745i, 745li, 750i, 750li, 760i, 760li (and diesel) 2002 - 2008 Fit for M-ASK, ASK-CD and CCCFit for 1 Series (E87, E88, E81, E82),Serie 3 (E90-E91-E92)Installation:1. Find the socket of the pin on the car (on the back of the radio)2. Install it directly and install the power cord.PackageList:1 x Bluetooth AUX Adapter1 x MicrophoneNote:Before purchasing, please confirm the consistency of the CD player interface and our product interface, the interface can only be used! ! !Before purchase, confirm whether the audio system of the car has AUX mode, and this audio cable can only be used with AUX mode; You need to adjust to AUX mode to play music before use.