... Bluetooth handfree kit Features:Car Digital CD Chagner with USB. SD adapter 1. Auxiliary interface adapter for MP3 player/iPod 2. Perfect CD ... a call while the radio's buttons, support Mobile music playing while connecting with Bluetooth 6. All in one fuction, one main ... car models only set dip-switch and alternate corresponding. Works with: OEM Radio: VW, Audi, Skoda, Seat, BMW, Mazda, Nissan, Honda ...