I bought a helix in Japan. When I returned to my country, I found that it only supports 100v on the back, but the specifications I saw on the Internet before I bought it all support 100v~240v. Why are the specifications of Japanese helix different? I bought it and cannot use 220v, nor can I take it to other countries for performances..... I bought it and it hasn’t been used so far, and no one can answer my question correctly. Helix is not sold in my country.. So I can only buy it in Japan. I think the world has a unified specification that can support 100v~240v voltage. As a result, I seemed to be wrong.. I bought it now but it is completely unusable.