1. Using Jerry Bluetooth master chip, connected through the reserved AUX audio input function of original car. 2. The car Bluetooth music player has wireless music transmission function and is aimed at car audio. Using Bluetooth transmission, you can say goodbye to messy, and you can also play music online. In the era of streaming media, various online APPs are quite convenient, and the audio source is updated in a timely manner. 3. This product is aimed at different brands of car models, and is equipped with different connectors and plugs according to the ports reserved at the back of the original car host. 4. Bluetooth name: JieRi-BT 5708 (support T card USB flash drive Bluetooth wireless audio AUX input microphone phone hands-free) 5. Bluetooth version: 5.0 7. Voltage: 12V 8. Fits for Volkswagen / Audi / Ford / Skoda MFD2 RNS2 CD host