【Bass and High Fidelity】The Bluetooth FM transmitter activates bass sound effects and immersive stereo sound by simply pressing the “b” button. It also uses DSP technology and high-quality HiFi to provide a more stable and distortion-free transmission speed. Double matching, the music is more dynamic. Bring the ultimate listening pleasure. [Hands-free and voice assistant] This Bluetooth car has built-in dual enhanced microphones and CVC noise reduction technology, supporting hands-free calls and One-button wake-up voice assistant functions. Press for 1 second to answer or hang up a call; press and hold for 2 seconds to wake up the voice assistant with one click. Calls are safer and operations are smarter. 【Unique AUX connection method】 This car Bluetooth adapter is equipped with three connection methods, namely Bluetooth, AUX cable and TF card. The most unique thing is the AUX connection, which allows you to hear clearer and more dynamic music sound. NOTICED : The package contains a 1