Product Description: Car Audio Cable Adapter AUX IN Music Bluetooth MIC For Mercedes SMART 451 Car Audio Bluetooth Cable Adapter Microphone AUX IN Music for Fiat For Alfa For Lancia for Benz SMART 451 Features: -Use original car"'"s AUX signal for HD audio transmission. Function via bluetooth-enabled devices. -bluetooth 5.0. -Eliminate the clutter caused by cables and cords. -No functional limitations of the car radio. -Allows you to connect an external audio source. -Integreated intelligent voice noise reduction tenology to reduce for echo and noise. -The product supports efficient music transmission, version 5.0, compatible with the following versions. -Can answer the phone in clear sound. Description The bluetooth main control chip is used to reserve the AUX audio input function through the original car. The car bluetooth music player has wireless music transmission function, for the old and current car audio. Because many consumers find that listening to music is very troublesome. If there is no audio input port, you need to burn the disc, and the disc is slow to update, which is inconvenient. In many old stereos, the original car has reserved AUX external input function, so this product canuse the function to support online music playback. In the streaming media era, online APPs are quite convenient, and the sound source is updated in time. Installation: Red power cable connected to 12V+ Black power cable connected to 12V- Plug into the CD player Jack (please confirm corresponding socket), mobile phone is connected with the bluetooth module, aux audio source selection, you can play mobile phone music. Specification 1. Name: Audio Cable Adapter 2. High quality 3. Color: Black 4. Material: ABS 5. Transmitter Distance: 15m 6. Frequency Response: 20Hz-20KHz 7. Frequency Range: 2.402-2.480GHz 8. Distortion rate: 1% 9. Current: 20mAh 10. bluetooth name: JieRi-BT 5908 11. bluetooth version: 5.0 12. Product voltage: 12V 13. Microphone Length: 150cm 14. Applicable models: for Fiat For Alfa For Lancia for Benz SMART 451 Package Include 1 x Audio Cable Adapter 1 x Bluetooth Microphone Notices: 1. We don"'"t confirm 2. Professional installation is recommended. 3. Please allow a little error due to manual measurement. Dear buyer,Welcome to our store. There are so many useful and item in our store. Have a nice day!