This Yesido Y44 Bluetooth Fm Transmitter and Car Charger.

Features: Includes Bluetooth V5.0 for wireless audio streaming, a built-in microphone for hands-free calling, and a colorful RGB atmosphere lamp. Charging: Equipped with dual USB ports providing a maximum total output of 3.1A for charging devices. Playback: Supports playing music via U-disk (USB drive) or TF card. Display: Features an LED digital display that shows the FM frequency and can also detect and display car battery voltage.