Feature: 1.Bluetooth 5.0 Technology, compatible with most Bluetooth-enabled devices, connect to your smart phone instantly. 2.Light weight and portable, easy to carry and use in indoor and outdoor.  3.Support 3.5mm AUX, FM, U Disk, TF Card and Bluetooth music play. 4. Exquisite appearance, simple and generous design, giving people a visual enjoyment. 5. Built in four high-performance core-iron