Using Bluetooth master chip, Bluetooth 5.0 version, high-speed transmission without distortion, sound quality up to high-definition standards.The car Bluetooth music player has wireless music transmission function and is aimed at the old and current car stereos. Many consumers find that listening to music is very troublesome. If there is no reserved audio input port in the car, you need to burn the disc.In addition, the audio source of the disc is slow to update, which is inconvenient. for example, some cars are equipped with an external audio input port to listen to music and you need to pull a long signal cable, which is very inconvenient to drag it to the center console.If you use 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.This product is aimed at different brands of models, and is equipped with different connectors and plugs according to the reserved interface behind the car host. The product uses a wide range of voltage input to adapt to different use environments.Applicable models,In the cd panel, there must be a medai button to use passat 2006 Greater than , touareg 2002 Greater than , Touran 2002 Greater than , polo 2004 Greater than , for Jetta 2006 Greater than , 2008-2011 Skoda, Suitable for RCD510, RCD310+, RCD300+, RNS510, RNS315, RNS310, NVF 230, NAF231. (Note: Not fit RCD300 cd host) sperbar, 2007-2011 Skoda qctavia.Bluetooth version: 5.0Product voltage: 5-12VMaterial:plasticcolour:blackPackage Contents:1 x Bluetooth audio AUX cableOnly the above package content, other products are not included.Note: Light shooting 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.