У вашего броузера проблема в совместимости с HTML5
here I install the - esc - motors - KK2.1 Control Board - and - finish the build - I think you will love this Tri-Copter - as with all QuadLugs Frame Kits - you can change things
KK2 Enclosure Lug Prep -
https://www.youtube.com/watch?v=YxblCkr-h9g&list=PLappeNUglOZBvm1-mb43o-VJPOcP7Eol8&index=1
to get started http://quadlugs.com/