【Hi-Fi Stereo Audio】 SONRU Bluetooth receiver adapter the latest Bluetooth 5.3 technology, which optimizes the traditional Bluetooth 5.0 transmission delay and unstable connection problems. Our Bluetooth 5.3 adapter has a faster, more stable and smarter connection, allowing you to immersively enjoy high-quality music | 【Clearer Calls】Bluetooth aux adapter for car is equipped with a microphone and smart voice assistant to collect your voice from all directions for smoother calls. With ENC technology, it can accurately pick up the human voice, providing you with a clear call experience, with a range of up to 32 feet (10 meters), you can enjoy music without any interference, bringing you a high-fidelity music experience. This enables clearer hands-free calls on both ends of the line | 【Plug and Play】Simply plug it into the 3.5mm auxiliary jack and power it via the USB port! Start your car and the aux bluetooth adapter will automatically pair your phone immediately. It allows users to pair and share two devices at the same time, enjoying music and hands-free calls easily (Please note: When 2 Bluetooth devices are connected at the same time, you can only play music from one of the devices | 【Multi-Function Button and LED Light】 Bluetooth 5.3 aux adapter independent button designed by the bluetooth aux adapter car supports one-touch up and down songs/volume up/down/answer/hang up/call back. Easy to use, no interference, safer driving. The LED light allows you to easily find the button at night, safer driving | 【Portable】 Light weight and very compact. You can take this Bluetooth receiver for hifi with you anytime. It is the best choice for drivers.enhanced durability with a stylish design to perfectly match your car aux and home stereo. If you encounter any problems during use, please feel free to tell us and we will be here to help you