2 in 1 Bluetooth Transmitter and ReceiverBluetooth aux adapter is equipped with the latest Bluetooth 5.4 technology, 3.5mm wireless adapter supports both bluetooth transmitting and receiving, namely TX and RX mode, which can achieve 33 feet (10 meters) long-distance transmission and stable connection with less sound quality loss. Just pair it with your phone and start listening to your favorite music! And The Bluetooth adapter supports charging while using, it is your good partner for travelNoise Reduction & Hi-Fi StereoUpgraded CVC8.0 technology and built-in filter IC effectively filters out more road noise, current sound, Bluetooth car adapter is equipped with enhanced microphones working in tandem to collect your voice from 360, and ensure we much brighter bigger sound while calling. Say goodbye to tangled aux cords! This Bluetooth adapter turns your car's aux port into a wireless audio hub. Made music in the car so easy.Instant Setup, Plug and Play5.4 bluetooth aux receiver when you turn on the switch, it will automatically enter the fast pairing mode, which is convenient for you to use. With a built-in microphone, easy to answer or hang up, pause or play music, and drive safely. Wireless adapter can pair with two Bluetooth enabled devices simultaneously which allows you to play music from either your phone or tablet, and you won't miss any calls while streaming musicInstant Setup, Plug and Play5.4 bluetooth aux receiver when you turn on the switch, it will automatically enter the fast pairing mode, which is convenient for you to use. With a built-in microphone, easy to answer or hang up, pause or play music, and drive safely. Wireless adapter can pair with two Bluetooth enabled devices simultaneously which allows you to play music from either your phone or tablet, and you won't miss any calls while streaming music