Operation confirmed. It works without any problems. I bought it on Mercari about two months ago and used it, but I'm selling it because I'm updating my equipment. The reverb recreates a pleasant spring reverb, and it also makes cute "pichu pichu" sounds. You might want to put it on your effects board as a reverb specialist. Manufacturer's description: The Fender '65 Deluxe Reverb has captivated many guitarists with its unique sound, regardless of genre. The response unique to small tube amps and the compressed, natural overdrive sound have led the rock, country, and blues scenes for a long time. The FDR-1 faithfully models this sound using BOSS's proprietary COSM technology. Fender has authorized only BOSS FDR-1 to use the name and logo of its legendary amplifier. A completely new concept pedal, the BOSS "Legend Series" FDR-1, has been born. In addition to clean amps, it can also be used in combination with tube amps as a "pre-gain pedal" to add the characteristic sound of the Fender Deluxe Reverb.