Feature: 1. Wide Application: Replacement for Mercedes Benz A‑Class W169, replacement for Mercedes B‑Class W245, etc. 2. Bluetooth Protocol: Bluetooth 5.0 version, and compatible with 2.0 3.0 4.0 5.0 other Bluetooth versions, not ordinary bluetooth functions. 3. Features: Support common MP3 format audio, support WMA WAV FLAC, and other audio format decoding, support DSD large capacity transmission. 4. Music Play: mobile phone is connected with the Bluetooth module, select aux audio source, and you can play mobile phone music. 5. High Performance: Professional manufacturing according to the original design, durable and not easy to damage. Specification: Item Type: Bluetooth AUX Cable Adapter Material: ABS Fitment: Replacement for Audio20, for Audio50 APS, for Comand APS (only NTG2) Replacement for A-W169/B-W245/C-W203/W209 CLK 04/04 - M-W164/GL X164/R-W251 with Audio20, Audio50APS, Comand APS Replacement for Mercedes A-Class W169 Replacement for Mercedes B-Class W245 Replacement for Mercedes C-Class W203 Replacement for Mercedes CLK-Class W209 Replacement for Mercedes GL-Class X164 Replacement for Mercedes M-Class W164 Replacement for Mercedes R-Class W251 Replacement for Mercedes S-Class W221 Replacement for Mercedes SL-Class R230 Replacement for Mercedes CL-Class 2004-2006. Package List: 1 x Bluetooth AUX Cable Adapter