?Dual connection?The car Bluetooth adapter can be connected to two Bluetooth devices at the same time, which is convenient for you to easily switch and play your favorite music on the two smart devices, reducing the tedious operation of disconnecting and reconnecting. ?Dual-port USB car charger?The car bluetooth receiver comes with a dual-port USB car charger, which is convenient for you to charge mobile phones, tablets, MP3 and other devices at any time. ?Noise isolator?Normally, the sound quality is very good. If you encounter background noise, just plug the product's audio cable into one port of the isolator, and then connect the other port of the isolator to your car AUX input To get high-definition sound. ?Wireless music?You can connect to non-Bluetooth car audio systems, home audio, old-fashioned speakers and wired headphones through the 3.5mm AUX equipped with the bluetooth audio adapter to enjoy wireless music at any time, and re-awaken the use of non-Bluetooth devices. ?Hands-free call?The built-in microphone of the Bluetooth adapter allows you to make hands-free calls while driving. The voice activation function can free your hands to ensure safe driving and easy travel.