Nice video. I tought about that a while ago. What detered me was, that from where I come from (Germany) despite that it is a pain in the ass with these regulations to import stuff (probably worst in europe), the vendor and the importer (in this case you) is responsible for malfunctions and/or dangers the products may expose to customers. You are responsible if for example the hoverboard has a malfunction and someone gets injured.

Don't you have this as well in the USA? I heard a lot of funny storries for example an old lady puting her cat in the microwave to dry after a bath. The cat dies and therefor she sued the company for millions of dollars that there was no hint animals shouldn't be put into microwaves.