... x1, 4Ω¢ Satellite 3inch x2, 4Ωl Output power: RMS 20W+ 10W x2l Power tube: TDA2030 x3l Power input: ~220V-240V ... /SD function and FM function on multimedia speaker,Mp3 speaker,speaker system,speaker part,speaker cable, professional speaker,active speaker.3.We sincerely welcome OEM and ODM ...