Combines Bluetooth MP3 playback and FM transmission. It easily plays mobile music through the car stereo, allowing you to enjoy high - quality sound. Equipped with dual USB ports, it supports fast charging of two devices simultaneously, meeting the power needs of multiple devices during driving. Supports inserting a USB flash drive. You can play the music in the drive without Bluetooth connection, providing diverse music - playing options. The Bluetooth hands - free function makes it convenient to answer calls while driving, freeing your hands and ensuring safe driving and communication. With a plug - and - play design, it is easy to install and widely compatible with various vehicle models, bringing convenient in - car entertainment upgrades for car owners.