BOSS DS-1, made in 1983. This item was found while sorting through belongings during a move. I'm not very knowledgeable about it, but I checked the serial number online and it appears to be from this era. Please refer to the photos for confirmation, as this information is based on internet research. Since I don't have a power cable, I've tested it with a battery and it works. Sound is produced. I hope that those who understand that this is a used item will consider purchasing it. - Model: DS-1 - Brand: BOSS - Color: Orange - Controls: Tone, Level, Distortion - Terminals: Output, Input Thank you for looking.