Where to order
https://www.vinpok.com/products/vinpok-marsback-transform-your-phone-into-a-mini-arcade
Gamesir website
https://gamesir.hk/
How To Connect GameSir Marsback to Android Phone
https://www.youtube.com/watch?v=2yt7ls8IVjE
How To Connect GameSir Marsback to iPhone
https://www.youtube.com/watch?v=oe2sdIwo0aA