The BOSS SUPER OverDrive SD-1 offers a versatile overdrive sound with three knobs: Level, Tone, and Drive. - Brand: BOSS - Model Name: SUPER OverDrive SD-1 - Color: Yellow - Control Knobs: LEVEL, TONE, DRIVE - Included Accessories: Box, Instruction Manual, Warranty Card Thank you for viewing. I purchased this approximately two years ago and used it in my board, connected to a switcher, until about six months ago. I checked its operation before listing it, and it works without any problems. Visually, I don't see any noticeable scratches, stains, or damage on the main unit, and I think it's in very clean condition. I didn't use Velcro to fix it to the board, and since I used a switcher, I hardly ever stepped on it. However, there are some hairline scratches on the silver parts above the three knobs. According to the serial number, it was manufactured in August 2023, so perhaps my purchase date is incorrect...? The outer box and all original accessories are included, but the outer box has some minor scratches and wear. [Additional Note] I apologize, I was supposed to have the warranty card, but I can't find it... I believe BOSS products have a 5-year warranty, but without the warranty card, you may not be able to receive manufacturer support in case of an issue. I will adjust the listing price accordingly, so please understand. The items for sale are everything shown in the images. Please check the condition in the description and images, and if you have any questions, please feel free to comment, and I will answer to the best of my ability. Based on the above, please purchase with the understanding that there are no claims and no returns. Manufacturer: BOSS