This is a distortion pedal made based on the circuit of the Maxon SD-9. It produces a beautiful sound with crispness and luster at low gain settings. No operational problems. It will be shipped via Yamato within 24 hours of payment confirmation. The following is the maker's description: This was created using a Maxon (Ibanez) SD-9 Sonic Distortion PCB purchased from the overseas site aion fx. It was made in a smaller enclosure than specified, so it's a tight fit. The lid has been slightly modified to close, and it may require a little finesse when opening and closing. True bypass specification. I made it for my own satisfaction, and have only confirmed the sound. Sound has been confirmed with both an adapter and a 9V battery. ・Knobs Left: Volume Middle: Tone Right: Distortion The toggle switch on the left controls the distortion character, and the one on the right determines how the tone is applied. I've included photos of the site's description in English. The bottom position of both switches is the original SD-9 specification, and the others are MODs. The MOD tone was easier to use than the original. 9V batteries and adapters are not included, so please prepare them yourself.