.120° 4K camera mounted ..... comfort ...... certainly . image . verification ..... loan . operation ... therefore . accurate . line . is possible to do .

.3D. lip .360° rotation .... Joy stick by using . rotation is possible to do ... button .. lip is possible to do . beginner ... that .... height . function . use .... easily super .. Performance .. reality is possible to do .

. height degree ..& Speed adjustment ... key ../ put on .. atmospheric pressure sensor mounted stability ... line .. reality is possible to do . Speed adjustment . automatic . put on .. ho . ring . possibility .. loan . operation . easy . beginner optimum . .

. head less mode . head less mode ... especially . loan ............... person ........ loan .. line is possible to do .

. battery . regarding . battery remainder .. un- pair when . automatically .... loan .. scratch . lost ... . . body .......... battery . controller . single 4 shape ...AAA.( optional )