... -power; euphonious alt, sweet mediant, voluminous bass 2.0 pro loudspeaker(3) professional loudspeaker with USB, SD card, FM, remote control, LED display ... , SD card, FM, remote control, LED display 2.0 professional loudspeaker.(6) USB professional loudspeaker with euphonious alt, sweet mediant, voluminous bass. Description:1 ...