... Passive Full Range system 2.Rotatable hanging design hi-fi digital sound system ( Professional stage loudspeaker ) Product Features:1.18mm MDF ... , indoor shows etc. entertainment venues7.Applications: audio engineering, mobile performance speaker system, foldback, meeting rooms, multifunction rooms, bars, KTV, clubs etc ... , G.W: 28.5kg 12" Two-way Passive hi-fi digital sound system