This is a Behringer volume pedal. It's a somewhat unusual active volume pedal. It was found during a warehouse cleanup, and the block logo with the ear graphic suggests it's from a very early period. I've tested its functionality. It requires a 12V center-positive adapter, which is different from the typical effects pedal, so I didn't have one on hand. Therefore, I couldn't confirm its operation with an adapter. However, I was able to confirm sound output using a 9V battery. ★Please be aware that using a center-negative 9V or 12V power supply, which is common for effects pedals, will damage it. ★According to the manufacturer's official statement, using the currently available 12V adapters may cause noise, so they seem to recommend battery operation. While I've confirmed its current operation, it's quite old and hasn't been used for a long time. Therefore, I cannot guarantee its continued functionality. Please purchase only if you understand this. For those looking for one or who can make use of it, how about it? 　＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿ ▼ Condition The exterior shows minor scratches, deterioration of the rubber and plastic parts due to age, stickiness, damage to the blue logo sticker, and remaining dirt and dust, giving it the appearance of a used item appropriate for its age. ※It's difficult to capture minor scratches in the photos, so please assume it has more signs of use than the photos suggest. The silver ring cover on OUTPUT1 in the 8th image is missing, but it didn't affect plugging in or sound output. Regarding functionality, as mentioned above, I've confirmed sound output and volume changes using a 9V battery. This is a used item that has been in someone else's hands, so please refrain from purchasing if you are looking for a completely new item or if you are sensitive to such things. ▼ Included Items Everything shown in the photos. Volume pedal body only. ▼ Shipping It will be shipped via Rakuraku Mercari delivery in a cardboard box. Thank you very much. 【Price reductions are not possible.】 If you purchase multiple items, I will offer a discount for the shipping cost savings, so please feel free to contact me.