I purchased a used item. It simultaneously applies reverb and delay, contributing to the compactification of the acoustic system. I confirmed its operation, and it works without any problems. However, the previous owner recommended using it with the effects constantly on, and mentioned that the sound might cut out depending on how the switch is used, so I'm classifying it as junk. Delay with high-quality sound combined with independent reverb A delay sound with a maximum delay time of 700msec and a high-quality reverb effect are combined into a single pedal. You can create the core reverberation of your guitar sound with a single pedal. (Quoted from a certain website's description)