LHX4 Quad Coopter
See the below link to view product video And More Pictures:
http://lordia.ir/%DA%A9%D9%88%D8%A7%D8%AF-%DA%A9%D9%88%D9%BE%D8%AA%D8%B1-%DA%A9%D9%86%D8%AA%D8%B1%D9%84%DB%8C-%D8%AF%D9%88%D8%B1%DB%8C%D9%86-%D8%AF%D8%A7%D8%B1-%D9%88%DB%8C%D8%AF%DB%8C%D9%88/