The BUFFALO features a huge variety of control to shape the sound as well as other features simply not found in one stomp box. First, it's a direct to amp overdrive effect that sounds good straight to amp and has plenty of headroom and adjustment. It has Low, Mid and High EQ along with a Frequency knob for EQ contour adjustments shifting of these frequencies. New for the Gen2, the stomp switch will allow bypass to the equalizer section for more song shift dynamics. Volume knob for total output level and an Attenuation knob which is for input signal attenuation/boost. I prefer this over some of my other drive pedals, colors the sound nicely with just enough 'edge" to the sound. Second, it's a headphone amp !! Perfect for late night jams or when an amp is not available. The unit is self powered to receive a headphone connection ( small pin headphone in). Sounds somewhat like the Rock It headphone amp when going through the Buffalo direct. Hook some effects in line, Delay, Reverb, Chorus, ect., it really starts to come alive. More than enough to inspire some new riffs with late night jams through headphones. Great for travel or carry-on....... Third, it's a direct box !! DI balanced output for going straight to a board or mixer or... unbalanced direct out for other 1/4 jack uses. This accepts three prong mic/instrument cable. Any three options can be useful as a stand alone item, but with the BUFFALO, it's all here in one.