This is a legendary Molten CH4 four-tone horn, which needs no explanation for those in the know. One piece. I don't think it's an official J-League product, but the blue string suggests it's a Gamba Osaka specification, at least in name. I remember it being unused, but it's been a while, so I'm listing it as "like new." I hope you understand, but due to the nature of the product, I haven't been able to thoroughly check its operation, but I believe it will make a sound. I have multiple pieces, and those who have purchased them in the past have given me good reviews, saying they were able to use them without any problems.