About this item Bluetooth 5.3 Version for Stable Connection: This Aux Bluetooth Adapter for Car features the latest Bluetooth 5.3 technology, which enables long range transmission and stable connection up to 33 feet (10 m), allowing you to enjoy a pleasant music environment while driving. Enjoy Wireless High Quality Music: The Bluetooth Receiver for Car converts non-Bluetooth devices to Bluetooth devices for wireless connection, allowing you to enjoy high quality music anytime, anywhere. It can connect to cars, speakers, stereo systems, and headphones. Transmitter and Receiver: This Bluetooth car adapter is designed with a mode switch; you can switch between Transmitter and Receiver modes with one key, and it will automatically enter pairing mode after turning on the switch, which is very convenient to use. Built-in HD Microphone: With a built-in HD microphone, this bluetooth aux adapter allows you to answer or hang up phone calls, pause or play music by simply pressing the power butto