The Hoverfly Power Tether and Yuneec Typhoon H enables you to fly as long as required, making it ideal to film entire outdoor sports games, training programs, and public safety events without worrying about landing to change batteries. The 150ft tether powers the drone through a high strength cable connected to an AC power supply on the ground. With Hoverfly and Yuneec you can capture aerial video all day in a single flight!