Suitable for car models, suitable for various rear mounted CD players, such as Alpine, Pioneer, Gele and other navigation machines. The original car has an AUX IN lotus female head audio system at the back, which can be plugged in relative to the RCA male head to achieve Bluetooth music Bluetooth version: 5.0 Product voltage: 5-12V Product features: Adopting Jerry Bluetooth main control chip, Bluetooth version 5.0, high-speed transmission without distortion, and sound quality up to high-definition standards. The Bluetooth music player in the car has wireless music transmission function, which is suitable for old and current car audio systems. Many consumers find it very troublesome to listen to music on a regular basis. If there is no reserved audio input port in the car, it is necessary to burn a disc, and the update of the disc's sound source is slow and inconvenient. For example, some cars are equipped with external audio input ports, and listening to music also requires pulling a long signal line, Dragging on the center console is very inconvenient. If you use Bluetooth transmission, you can bid farewell to clutter and 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. This product is designed for different brands of vehicle models and is equipped with different connectors for docking based on the interfaces reserved behind the original vehicle host. The product uses a wide range of voltage inputs to adapt to different usage environments,