High-Fidelity Audio: Bluetooth receiver is equipped with the latest Bluetooth 5.4 technology, optimizing the transmission delay and connection defect problems of the old Bluetooth 5.0. Our Bluetooth 5.4 adapter will bring you a faster, more stable, and smarter connection with less sound quality loss.Multifunction Button & LED Light Design: The independent button designed by the Bluetooth 5.4 receiver supports one-key up and down son, volume up/down/, answer/hang up/call back. Ease of use, no distractions, and safer driving. And LED lights make it easier to find buttons when night falls.Plug and Play: Simply plug it into the 3.5mm auxiliary jack and power it through the USB port! Start your car and the Bluetooth car adapter will automatically pair your phone immediately. It allows users to pair and share two devices at the same time to easily enjoy music and hands-free calls.Clearer Sound: Equipped with Enhanced microphones and lossless sound, the car Bluetooth receiver aux effectively filters out road noise, resulting in clearer hands-free calls on both ends of the line. It also supports dual device pairing, with a range of up to 32ft/10m, you can enjoy your music without any interruptions, bringing you enjoy a high-fidelity music experience.Awesome Cable: Built With a nylon braided cable, aux Bluetooth adapter for car is extremely durable and sturdy; Also constructed with multiple layers of shielding to minimize interference, and is corrosion-resistant for optimal signal transmission, effectively prolonging the cable service life.