Using bluetooth master chip, bluetooth version 5.0, high-speed transmission without distortion and high-definition sound quality With unlimited music transmission function Using bluetooth transmission, you can say goodbye to messy, and you can also online. In the era of streaming media, various online APPs are quite convenient, and the audio source is updated in time For models of different , according to the ports reserved at the back of the car's main engine, equipped with different connectors The product uses a wide range of voltage input to adapt to different use environments Lightly press the function button to change song, long press the function button for two seconds to switch to the previous song If the call comes, tap the function key to answer the call. If you need to hang up, tap the function key to hang up The product adopts high-end bluetooth module with noise reduction filter function, and the product uses digital audio processing to restore HIFI sound quality Name: Car Audio Bluetooth Adapter bluetooth version: 5.0 Voltage: 5-12V Microphone cord length: 1.5 meters Fitment: for 307//206/207 for Elysee/C4 Colour:black Material:plastic Package Contents: 1 x Car Audio Bluetooth Adapter 1 x Microphone Note: This device is only suitable for RD09 USB host, please refer to the picture of the center control panel before purchasing 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 measurement allowed error is +/- 1-3cm.