... , FM, remote control, LED display 5.1 powered speaker.(6) USB 5.1 powered speaker with euphonious alt, sweet mediant, voluminous bass.Description:1. 5.1 acoustics system with built-in ... input4. surround sound 5.1 powered speaker with USB, SD card, FM, remote control5. fashionable and good sound effect 5.1 powered speaker6. 5.1 acoustics system with high ...