BOSS DS-1, made in 1983. This 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 there is no power cable, I have tested it with a battery and it works. Sound is produced. As this is a used item, I would appreciate it if those who understand this would purchase it. - Model: DS-1 - Brand: BOSS - Color: Orange - Controls: Tone, Level, Distortion - Terminals: Output, Input Thank you for looking.