I obtained this at auction previously. The seller's description was "SD-1 Made in Japan, 1986, Op-amp JRC 4588DD, glossy." I only checked for power and sound when I purchased it and before listing it. There is some crackling in the Volume, but otherwise, I think it's generally in good condition. As for the sound, there's nothing more to say, it's the legendary Super Over Drive. The AC adapter is a used item I purchased separately for testing. The cable in the photo is not included. Since it's been stored at home, there may be scratches that I missed in the photos, so please check the photos for details. I do not have any pets, and I do not smoke. There is no original box. Shipping will be via Rakuraku Mercari delivery. ・Please consider purchasing at the listed price. I will not negotiate the price. ・Shipping is scheduled for weekdays, Monday to Friday, excluding holidays, Saturdays, and Sundays. ・The photos have not been edited, but the actual color may look slightly different due to lighting, etc., so please be aware of this. ・I cannot answer questions other than about this item. ・I cannot change the shipping address or shipping method after purchase. ・Returns and cancellations are not accepted to prevent swapping. #Effecter #BOSS #Boss #SD1 #Super Over Drive #Super Overdrive #Pedal #Compact #Made in Japan