Tethered Drone manufacturer / supplier in China, offering TPS330m-12kw Drone Tether Station: High-Altitude Relay Communication with Extended Range & Reliable Connectivity, 12000W Tethered Drone Power Supply System: Supports 100-300m Flight Altitude & 24+ Hours of Continuous Operation, 12000W Tethered Drone Power Supply System: 24+ Hour Flight, Full Protection, Automated Winching & Smart Monitoring and so on.