good
it’s greater for my simate hoverboardApp don’t work can read language it’s just stupid
App don’t work can read language it’s just stupidlanguage
just two language is not good idea for device that you would sell every where you can, all of chineese device sell in my country those don't have any guide book and garanti, and if there is a msnual or applucation, it does not in mother tounge. actually in this application which you offer 4years ages, it's ridiculous.
Congratulation