<br>Enjoy Wireless Music -Transmitter and Receiver Bluetooth aux adapter can connect to car audio system, home stereo, speaker, and Wired headphone. Using the aux Bluetooth adapter in receive mode, wired devices can play the music that is on your phone; In transmitter mode, Bluetooth devices can receive the sound that on the wired devices. Get yourself freedom from the tangle of audio cables, to enjoy music wherever.Bluetooth 5.0 &amp; Stable ConnectionWireless audio adapter has stable connection and fast transmission, to offer better quality wireless audio experience while listening to music or making calls. Wireless Bluetooth Music Receiver maintains a strong connection up to 33ft without obstacles (walls, doors, Wi-Fi routers, Wireless TV adapter, etc.)Auto ReconnectionBluetooth car adapter can automatically pair with the last connected phone after powered on. Bluetooth 5.0 Music Audio Receiver will enter pairing mode if the Bluetooth of the last phone is unsearchable.Hands-free CallingA built-in microphone and Multifunction Button to answer / redial / hang up / reject calls. Answer phone calls without picking up the phone. Make you enjoy complete hands-free calling during driving.Portable &amp; Plug and PlayThe size of the receiver is small, you can carry it anywhere. bluetooth aux adapter for car is a good choice for driving and taking it for travel. Bluetooth car adapter is designed with power button, Plug into the aux port, turn on it, switch the TX or RX mode, it will automatically enter the pairing mode.<br>