Car stereo receiver with Bluetooth for hands-free calling and MP3 playback1、Car MP3 player, support U-disk/TF card/AUX/BT playback, shocking stereo sound, subwoofer audio output, gives you a nice musical experience. 2、Support BT connection to phones to achieve hands-free calling, quick answer/reject/recall. Work with APP, you can quickly locate your car and find it easily. 3、Short press button 2 can wakeup the voice assistant with one click, which makes you use voice to open the navigation, playing music and more, compatible with Android and iOS systems. 4、Support positive and negative power reverse protecting, connection error will automatically power off, will not burn the machine, reconnected correctly can also be used normally after the power on. 5、With Type-C and USB charging port, high charging efficiency, no worry about the phone running out of power when navigating. Support audio recording, insert TF card or U disk (not included) you can record radio broadcasts, BT audio and AUX audio. 6、Equipped with a adjustable phone holder, support 136-168mm width adjustable, suitable for a variety of sizes of phones, fixed stably, anti-shake and anti-shock, more convenient to use the phone.