... Coating Bookshelf Active 2.0 Computer Speaker System(CR6502) computer speaker:2.0 speaker,speaker system,speaker box,2.0 speaker box,speakerFeatures:15mm medium ... superiorEach tweeter features a 1.25" soft silk dome speaker with high-gauss neodymium-iron-boron magnet, creating soft ... -power transformer to ensure no momentary distortionAdjust at side, with VOLUME, TONE, S.W. VOL three knobs, humanized ...