Bluetooth FM transmitter for car with USB charger and hands-free calling1、Modern Design: This Bluetooth car player is automatically connected back to the power on, when the memory frequency, song power failure restart,it will from the first sentence of the disconnected song to play. 2、Charging Interface: This Bluetooth car player is designed with dual USB interface, which allows you to listen to music and charge in the same time. Support many smart phones fast charging. 3、Beautiful Light: This car Bluetooth player has music night vision ambient light, 7 colors of light accompanied by breathing mode, making you have a comfortable driving experience. 4、Stereo Sound: This Bluetooth player built in high performance decoding module, with Bluetooth 5.0 lossless transmission, high resolution and high performance stereo sound, making the sound quality more shocking. 5、Features: Smart control chip intelligent protection power efficient conversion, reduce power loss. Insert U disk and TF card, double click to adjust the mode you want.