Please understand that returns (to prevent replacement) and claims are not accepted. BOSS ME-20 multi-effects processor with various effects and a volume pedal. - Brand: BOSS - Model Name: ME-20 - Type: Multi-effects processor - Power Supply: AC adapter included - Connectors: Guitar input, Amp output - Pedal Type: Volume pedal Operation has not been confirmed, so no operational guarantee can be provided. This is a used item, so there may be scratches and stains. This item is sold as junk because the operational status has not been confirmed. Please purchase only if you understand that this is a junk item. For those interested in disassembly and repair, or those who need parts, how about it? Returns are not accepted for items treated as junk. A junk item is an item that is so broken or worn that it is unlikely to be usable and has lost its original value as a product. Please refrain from purchasing if you are sensitive to such matters. Thank you for viewing.