Durable and practical to use Functions via Bluetooth-enabled devices. No functional limitations of the car radio Allows you to connect an external audio source With the advancement of wireless technology, wireless connectivity is becoming increasingly popular Adopts Bluetooth 5.0 protocol, backward compatible with Bluetooth 2.0, 3.0, and 4.0 versions Supports common MP3 format audio, as well as WMA, WAV, and FLAC high-quality audio format decoding Supports DSD high-resolution audio playback, ensuring stable data transfer between devices and high sound fidelity, designed for music enthusiasts Can also be used for watching movies, map navigation, and other applications Installation: Plug into the CD player jack (please confirm the corresponding socket), connect your mobile phone to the Bluetooth module, select aux audio source, then you can play music from your mobile phone Compatible with the following models: For C2 2005+ Blaupunkt/VDO/Bosch RD4 For C3 2005+ Blaupunkt/VDO/Bosch RD4 For C4 2005+ Blaupunkt/VDO/Bosch RD4 For C5 2004+ Blaupunkt/VDO/Bosch RD4 For C6 2005+ Blaupunkt/VDO/Bosch RD4 For C8 2004+ Blaupunkt/VDO/Bosch RD4 For Berlingo 2005+ Blaupunkt/VDO/Bosch RD4 For Synergie 2005+ Blaupunkt/VDO/Bosch RD4 For Peugeot Expert 2007+ Blaupunkt/VDO/Bosch RD4 For Peugeot 207 2006+ Blaupunkt/VDO/Bosch RD4 For Peugeot 307 2005+ Blaupunkt/VDO/Bosch RD4 For Peugeot 307SW 2005+ Blaupunkt/VDO/Bosch RD4 For Peugeot 307CC 2004+ Blaupunkt/VDO/Bosch RD4 For Peugeot 308 2007+ Blaupunkt/VDO/Bosch RD4 For Peugeot 407 2005+ Blaupunkt/VDO/Bosch RD4 For Peugeot 407SW 2005+ Blaupunkt/VDO/Bosch RD4 For Peugeot 607 2005+ Blaupunkt/VDO/Bosch RD4 For Peugeot 807 2005+ Blaupunkt/VDO/Bosch RD4 For Peugeot 1007 2005+ Blaupunkt/VDO/Bosch RD4 For Peugeot 4007 2007+ Blaupunkt/VDO/Bosch RD4