【This is a junk item】 ◉ I purchased this used, and it stopped working immediately with a 9V battery. There is no leakage in the battery snap. The cause is unknown. It works fine with an external power supply such as an adapter. ◉ The BASS and GAIN knobs have crackling. Please understand the above two points and purchase this item on the premise of repair or parts replacement. Marshall Plexi-style distortion. Based on the logo mark and the color of the enclosure, it is believed to be an early model. The SNARL switch, which is not found in later models, allows you to change the character of the distortion. (Reference video) https://youtu.be/EkR_HhezyLA?si=rx-XBDgbo2sq9cj0 The exterior has some scratches on the knobs, but there are no deep scratches. Item is the main unit only. I will pack it carefully and ship it. ＿＿＿＿＿＿ The Animal Overdrive represents J. Rockett's interpretation of the 1968 "Plexi" sound. With an open and organic tone, it is similar to the original tone. You can use the "Snarl" switch to switch between the classic Plexi and a "modified" version with more distortion and rich harmonics. - Model name: ANIMAL OD - Brand: ROCKET PEDALS USA - Controls: VOL, GAIN, TREBLE, BASS, SNARL - Input/Output terminals: IN, OUT, DC INPUT - Switch: True bypass footswitch Marshall Plexi distortion ディストーション (distortion) over drive オーバードライブ (overdrive) booster J ROCKETT AUDIO DESIGNS Archer KTR Centaur ロケットペダル (Rocket Pedal)