... : 20W UL & CE & RoHS Certificate 20W Guitar Amplifier GF-20MCPower: 20WSpeaker: 6.5"Mic control: Mic Input, Mic Volume, Tone, ReverbMaster Control: Length, Depth ... : Normal Volume, Gain, Drive Volume, Bass, Middle, Treble, Reverb, OutputFeatures: Mic Input, Reverb, Overdrive, CD Input, Headphone, OutputDimensions: 13.6*6 ...