This acoustic guitar amplifier is 30 watts (15 x 15 w) or 20 watts on batteries it’s just over 10lbs, runs on AC or 8 AA alkaline batteries. Two channels, one instrument ¼ and Instrument ¼ or XLR mic channel. On board effects: reverb, chorus and ambience. The anti-feedback function comes in handy. The amp also has a 40 second phrase looper. There’s an input for connecting MP3 and CD players, rear panel 1/4" left and right stereo outputs, 1/4" headphone jack, foot switch inputs for looper and effects. The RW model has a rosewood-like finish. Great little multipurpose amp.