Guitar Effects Pedal Pipebomb Compression Flip Mini Electric Guitar Stompbox Effects Pedal Video: http://v.youku.com/v_show/id_XNzEyNjc4NjE2.html?from=y1.2-1-95.3.5-1.1-1-1-4 This prevents users from bumping and changing the knobs and from others who want to copy your tone Interface: input, output, power supply Indicator: two LED lights , After the cover can be reflected JOYO Brand: JOYO . JF-312 PIPEBOMB