Tethered Drone manufacturer / supplier in China, offering Relay Communication Tethered Drone System: Cable-Powered for Uninterrupted Flight & Seamless Connectivity, 18kw Large-Payload Vtol Tether Station Drone with Automated Winch Reel System – Enabling Uninterrupted Flight, 330m Cable Length, 58V, 18kw Rated Output Power – a High-Performance Cable Power Station for Large Payload Drones and so on.