BIG CONTROL KNOB & VIVID BREATHING LIGHTS - The enlarged mechanical control knob of this Bluetooth AUX adapter makes it easier for you to answer/ reject/ hang up/redial hands-free calls, and increase/ decrease volume with a simple twist. The surrounding gorgeous three-color ambient lights add to the atmosphere and let you find the buttons safer when night falls.LED DISPLAY SCREEN & 12 HOURS BATTERY LIFE- Equipped with a high-definition LED display screen, you can grasp the electricity and volume of this Bluetooth receiver at any time with just a glance. Also, it has a built-in 12-hour large-capacity battery, saying goodbye to frequent charging.BLUETOOTH 5.3 & NOISE CANCELLATION TECH - With the latest Bluetooth 5.3 chip, this upgraded Bluetooth car adapter provides faster pairing and more stable connection with less loss of audio quality. Besides, the latest CVC 8.0 noise reduction technology will significantly reduce the volume of road noise, wind noise and other distractions, providing you a crystal clear voice quality when making calls.DUAL CONNECTION & INTELLIGENT NAVIGATION - The portable Bluetooth 3.5mm adapter can be paired with 2 devices simultaneously, never missing any calls while enjoying music. And it also supports broadcasting voice notifications, so you don't have to look down at your phone while on the move, ensuring your safe driving!EASY TO USE & WIDE COMPATIBILITY - Just plug the wireless receiver into the AUX port, then press and hold the multi-function button for 3 seconds to power on and pair. You can convert non-Bluetooth stereo devices (including home stereos, car stereos, and wired headphones) into Bluetooth-enabled devices, now you can enjoy the HiFi music feast anywhere.