Tethered Drone manufacturer / supplier in China, offering Rosefinch Powerful Signal and Intelligence a Long Distance Heavy Dji Flycart 30 Tethered Drones, 12kw 220m High Energy Drone Tether Station for Emergency Event Monitoring, Dji Flycart 30 Tethered Drone Station - 220m/330m Cable, 24hr+ Flight Time - for Sale and so on.