The Fulltone Secret Frequency transcends the boundaries of overdrive/distortion. It's a pedal that covers everything from clean boost to overdrive that reaches into the rock realm, all while maintaining a natural sound that follows your playing dynamics. Its asymmetrical clipping circuit provides a musical clean boost, and even when the gain is increased, it doesn't lose its responsiveness to subtle playing nuances. When the Freq. knob is turned fully counter-clockwise, the midrange boost is turned off, allowing it to be used as a versatile and straightforward drive pedal, similar to other Fulltone overdrive/distortion pedals. By adjusting the midrange appropriately with the Freq. knob, you can create a sound with a boosted midrange, perfect for guitar solos and the like. ◯ Purchased new in October 2022 as a domestic authorized import. ◯ Operation confirmed. ◯ Used only a few times indoors at home. ◯ Not used with shoes on, nor attached with Velcro. ◯ Accessories: Importer Musette Japan warranty card / English instruction manual / sticker ◯ Manufactured at the California factory. ◯ Production has now been completed. ・Musette Japan Fulltone Website http://www.musette-japan.com/fulltone_contents/standard-line/secret-freq/index.html