Bass-Boosted & Hi-Fi Stereo Bluetooth Car Aux Adapter: Simply press the 'Bass' button to enjoy deep, powerful bass and immersive stereo sound. Utilizes high-quality HiFi technology to restore authentic sound and powerful bass, delivering the ultimate listening experience. Clearer Calls: Equipped with dual microphones working together to capture your voice from 360° for smoother calls. The upgraded CVC8.0 technology and built-in filter IC effectively filter out more road noise, current noise, and other distractions, resulting in clearer hands-free calls on both ends. Innovative LED Digital Display: See the current status of various functions like volume levels and the exact amount of power remaining. Reminds you to charge in time, so you can keep the music playing. Multifunction Button & LED Light Design: The independent button supports one-button music control (up/down) / volume control (up/down) / answer / hang up / redial. Easy to use, minimizing distractions and ensuring safer driving. LED lights make it easy to find the buttons at night. 26-Hour Super Long Battery Life: Enjoy up to 26 hours of battery life for calls or music. This Bluetooth music receiver can also be used while charging, making in-car music effortless.