1、Application: Bluetooth AUX IN adapter is suitable for Pioneer with 2RCA Audio Port, suitable for Alpine with 2RCA Audio Port, suitable for Kenwood with 2RCA Audio Port. 2、Bluetooth Version: Support Bluetooth enabled devices, Bluetooth 5.0 version, and compatible with 2.0 3.0 4.0 5.0 other versions. No functional limitations of the car radio, allows you to connect an external audio source. 3、Audio Format: Support the commonly used MP3 format audio, but also support the WMA WAV FLAC, and other high quality audio format decoding, also can support DSD large capacity transmission. 4、Easy Operation: Match your phone, tablet or mp3 to bluetooth module, and choose Aux from your radio, then you can use your phone to play music through car speakers. 5、Premium Material: Car Bluetooth music cable adopts premium ABS material, heat resistant, sturdy and durable, not easy to damage.