Characteristics: *Universal, suitable for most vehicles. *Bluetooth 2RCA Auxiliary Cable Adapter. * High quality, stable characteristics and high reliability. *You can listen to music by phone/pad/mp3(must support bluetooth function). *You can connect this product to your rear radio and connect the red wire to 12V and the black wire to 12V-. * Pair your phone or tablet with the bluetooth module. and select AUX from the radio, then you can use your phone to play music through car speakers. Specification : Product Name: Car Bluetooth Receiver Module. Bluetooth version : 5.0 Effective distance: 10 meters Working voltage: 5-12V material : plastic Colour: black Line Length: 15.4cm Applicable models: suitable for vehicles with 2RCA interface Suitable for 5-12V voltage, the maximum cannot exceed 14V, otherwise the voltage on the device is too high and it will be burnt. 1 * bluetooth receiver module