Tethered Drone manufacturer / supplier in China, offering Customizing Drone Hovering 48 Hours No Stop Drone Power Cable 110m 160m 220m Dji Matrice 400, Rosefinch Powerful Signal and Intelligence a Long Distance Heavy Dji Flycart 30 Tethered Drones Dji Matrice 400, Rosefinch Dji Flycart 30 Dji Matrice 400 Tethered Drone Station - 220m/330m Cable, 24hr+ Flight Time - for Sale and so on.