... /326(1) USB 2.0 professional loudspeaker plays in stage, shop, disco and KTV, with colorful disco lights(2) high-power; euphonious ... alt, sweet mediant, voluminous bass. Description:1. loudspeaker with built-in USB and SD card reader, read MP3 music format2. volume, ... , laptop , mp3, mp4,CD, mobile phone.5,Built-in FM tuner,auto scaning,FM function with frequency range 87.5-108MHZ6,Function: Support ...