Feature: 

* Bluetooth/USB/TF/FM/AUX with Karaoke (wireless microphone optional)

* 8W Hi-Fi classic D amplifier system

* Bluetooth 5.0 version (Bluetrum solution)  

* USB support MP3/WMA audio format

* FM PLL digital tuner

* 4 digit LED display (red)

* Digital ECHO for Karaoke

* Big circle LED lighting

* Built-in Li-ION 18650 3.7V 1800mA battery

* Fully remote control (optional)