... speaker specified tone control system, CE&RoHS GF-15 Guitar music system amplifier have solid amp body, 3-band EQ and ... : Normal Volume, Gain, Drive Switch,Drive Volume, Treble, Middle, BassFeatures: Headphone Jack, Output Jack,Speakers: 6.5"- 8 ohm SpeakerColor:Dark ... .5*42G.W./Ctn (Kgs):13.1KG GF-15 Guitar music system amplifier