Use car's AUX signal for HD audio transmission. Function via bluetooth-enabled devicesNo functional limitations of the car radio. Allows you to connect an external audio source.AC6925A stereo bluetooth chip. Integreated intelligent voice noise reduction tenology to reduce and noise.With the improvement of wireless technology and the subsequent wireless transmission is the trend of the times, a wireless bluetooth music product suitable for car use.Support TWS(Receiving mode)Installation:Red cable connected to 12V+Black 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.Specification1. Name: Audio Cable Adapter2. Model: E045483. Color: Black4. Material: plastic5. Transmitter Distance: 15m6. Frequency Response: 20Hz-20KHz7. Frequency Range: 2402-2480GHz8. Distortion rate: 1%9. Current: 20mAh10. Adapter Size: 55*55*20mm11. bluetooth version: 5012. Product voltage: 12V13. Adapter Cable Length: 140cm14. Microphone Cable Length: 190cmApplicable models for:for C2 2005+ C5for /VDO/for RD4C3 2005+for /VDO/for RD4 C4 2005+for /VDO/for RD4 C5 2004+for /VDO/for RD4C6 2005+for /VDO/for RD4for C8 2004+for /VDO/for RD4for Berlingo 2005+for /VDO/for RD4for Jumpy 2007+Notices: We don't confirm 100% to compatible above car model yearsplease make that connector can fit for yor car before you order.Package Contents:1 * Audio Cable Adapter1 * bluetooth microphone1 * Universal User ManualOnly 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.