HK Audio SOUNDCADDY World's Fastest PA System Self-contained PA system with integrated handle and wheels Single unit design with pneumatic pop-up line array extension 600 Watts of clean, Class D power; full four-channel mixer; Bass Level balance 6-Inch Subwoofers (x3); 3.5-Inch Mid-High speakers (x6) in a line array column Stereo operation with two SoundCaddy One units