... loudspeaker, for stage, shop, disco and KTV 2) USB loudspeaker with USB, SD, remote, colorful lights USB 2.0 professional loudspeakerOutput(RMS): P.M.P.O ... 20'G/40'G/40'H: 139/278/326(1) USB 2.0 professional loudspeaker plays in stage, shop, disco and KTV, with ... tone performance perfect.3. Loudspeaker with new concept integral stereo portable mobile music, connecting your MP3,CD, DVD, PSP, mobile ...