Loudspeaker,portable speaker,FM speaker Loudspeaker,portable speaker,FM speakerSM/MMC card,Udsc can be playedCD,PC,NOTEBOOK,mobile phone can be playedDrive Unit45mmRMS2w*2Output:3.7V 1000MAInput:5.0VLi-ion Batt,with remote,LCD display,FM radioFrequancy Response70Hz20kHzSignal and noise ratio of power amplifier85dB... Loudspeaker,portable speaker,FM speaker