These have no battery, no remote control, no camera, no speed control, just pure lifting capacity rated from one pound more than the drone’s weight, to 2 lbs, 4, 8, 16, and 32 lbs more. Additional models will be added as needed.

The purpose of these drones is to be able to lift a weight such as a sign that is tethered to a certain location. The tethering cables also supply the power to run the motors. See https://SignsThatFly.com for examples of signs to use with these drones.