. Made of high-quality material, practical to use. Functions with Bluetooth-enabled devices. No functional limitations of the car radio. Allows connection to an external audio source. With advancements in wireless technology, wireless transmission is becoming the standard. Features Bluetooth 5.0 protocol, backward compatible with Bluetooth 2.0, 3.0, and 4.0. Supports common MP3 audio format, as well as WMA, WAV, and FLAC high-quality audio format decoding. Supports DSD high-resolution audio transmission. Ensures stable data transfer between devices with high fidelity, designed for music enthusiasts. Additionally, supports hands-free calling, music playback, and navigation functions. Installation: Plug into the CD player jack (please confirm compatibility with your socket). Connect your mobile phone to the Bluetooth module, select aux audio source, and play music from your phone. Compatible with: C2 2005+ // RD4, C3 2005+ // RD4, C4 2005+ // RD4, C5 2004+ // RD4, C6 2005+ // RD4, C8 2004+ // RD4, Berlingo 2005+ // RD4, Synergie 2005+ // RD4, Expert 2007+ // RD4, 207 2006+ // RD4, 307 2005+ // RD4, 307SW 2005+ // RD4, 307CC 2004+ // RD4, 407 2005+ // RD4, 407SW 2005+ // RD4, 607 2005+ // RD4, 807 2005+ // RD4, 1007 2005+ // RD4, 4007 2007+ Blau // RD4. Color: Black. Material: ABS. Package Contents: 1 x Bluetooth Adapter, 1 x Microphone. Only the items listed are included; other products are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.