Durable and practical to use Functions via Bluetooth-enabled devices with no limitations to the car radio Allows connection of an external audio source Bluetooth 5.0 protocol ensures stable wireless connectivity, backward compatible with Bluetooth 2.0, 3.0, and 4.0 Supports high-quality audio formats including MP3, WMA, WAV, and FLAC Enables high-fidelity audio transmission and supports DSD decoding for enhanced sound quality Ideal for music playback, hands-free calling, movie watching, and navigation use Installation: Plug into the CD player jack (confirm compatibility), pair mobile phone with the Bluetooth module, select aux audio source to play music from your phone Compatible with the following models featuring Blaupunkt/VDO/Bosch RD4 systems: - C2 2005+ - C3 2005+ - C4 2005+ - C5 2004+ - C6 2005+ - C8 2004+ - Berlingo 2005+ - Synergie 2005+ - Peugeot Expert 2007+ - Peugeot 207 2006+ - Peugeot 307 2005+ - Peugeot 307SW 2005+ - Peugeot 307CC 2004+ - Peugeot 308 2007+ - Peugeot 407 2005+ - Peugeot 407SW 2005+ - Peugeot 607 2005+ - Peugeot 807 2005+ - Peugeot 1007 2005+ - Peugeot 4007 2007+