wireless speaker, speaker 1.Power:50W 2.USB/SD card reader with remote control, FM and karaoke function.LED screen 3 ... Speaker System, Active Speaker,Professional Speaker,bluetooth speaker,wireless speaker,vibration speaker,ipod speaker, iphone speaker,speaker stand,moblie speaker, ... mm satellite: mmFunction: karaoker, USB/SD card reader, FM, remote control, LED Screen Quantity/carton: 4/ CTNN.W: 6.5KG ...