We are happy to have our team to enjoy G.E.M. X.X.X. LIVE concert and we built the G.E.M. X.X.X. LIVE 手機熒光棒 iPhone App – https://itunes.apple.com/hk/app/x.x.x.-live/id609347135?mt=8 and Android – https://play.google.com/store/apps/details?id=com.zizsoft.gemxxxlive&hl=en Below will show how it ...