Selling to organize equipment. *Body only. The Master knob is missing. The following is quoted from the sales site: ALBIT Corporation is a musical instrument manufacturer in Soka City, Saitama Prefecture, that has been manufacturing, repairing, and modifying electronic musical instruments since 1980. All products are "MADE IN JAPAN" for peace of mind. The effector brand developed by ALBIT: Cranetortoise BS-1 Booster This is a unique booster developed from the perspective of an amplifier technician, designed to clip the first stage of the amplifier being used. It features an edge control to adjust the sound clarity, and the MASTER SW can be used in conjunction to set the desired volume. It has an ALL BYPASS SW, and of course, it is TRUE BYPASS. This is a booster pedal with a unique concept. Of course, it can also be used as a regular booster.