У вашего броузера проблема в совместимости с HTML5
Baltic birch plywood gears and treads. 7.2v NiCad battery HobbyWing QuicRun 1060 Brushed ESC 6 Channel Transmitter Runs on two brushed motors (with gearbox) that I scrapped from 7.2v Craftsman drills. The plywood treads and gears were scaled from Matthias Wandel's plans. http://fluxwood.org/front/woodworking/electronics/2017/04/11/RC-Wooden-Tank.html