2 Watts of output power, One 12AT7 output tube, One 12AX7 preamp tube, 4" Special Design speaker, VU meter with “CLEAN to OVERLOAD” indicator, Volume and Tone controls, 1/4" instrument input, 1/4" line out (for using as a preamp with another amplifier), 1/4" speaker out (for using with an external speaker enclosure), 1/8" AUX input (for hi-fi tube amplification of external music playback device; Instruments may be played simultaneously with recorded music)