Thank you for viewing. This is a mini-amp in the shape of a ZO-3. I purchased it new about 30 years ago and have kept it at home as part of my collection. The box has some wear and scratches, but the main unit is in near-mint condition, as good as new. I have confirmed that it produces sound from the speaker when a guitar is connected. Size: 20cm wide x 14cm high x 6cm deep Please understand that returns are not accepted after purchase to prevent issues such as product switching. Please make your purchase with the understanding that it is non-cancellable and non-returnable (NC, NR).