Made of durable ABS material and practical to use. Functions via Bluetooth-enabled devices. Compatible with car radios that have a CD player jack input. Allows connection to an external audio source. Features Bluetooth 5.0 technology, backward compatible with Bluetooth 2.0, 3.0, and 4.0. Supports MP3, WMA, WAV, and FLAC audio formats. Delivers stable wireless data transfer and high-fidelity audio performance. Enables hands-free calling and audio playback from your mobile device. Also supports voice-guided navigation and media streaming. Installation: Plug into the vehicle’s CD player jack (please verify compatibility with your vehicle’s socket), pair your smartphone with the Bluetooth module, and select the AUX audio source to play music from your phone. Compatible with vehicles equipped with RD4 head units, including: Citroën C2 (2005+), C3 (2005+), C4 (2005+), C5 (2004+), C6 (2005+), C8 (2004+), Berlingo (2005+), Synergie (2005+), Expert (2007+), Peugeot 207 (2006+), 307 (2005+), 307 SW (2005+), 307 CC (2004+), 2007 (2005+), 407 (2005+), 407 SW (2005+), 607 (2005+), 807 (2005+), 1007 (2005+), and 4007 (2007+). Color: Black. Package includes: 1 x Bluetooth adapter, 1 x microphone. Other accessories are not included. Note: Colors may vary slightly due to screen settings and lighting conditions. Dimensions may vary by ±1–3 cm.