The most common commercial aerial devices already have an image transmission system built in and transmit the camera's perspective to the ground in real time. The video signal can then be viewed on a monitor, laptop, smartphone, tablet or video goggles. This is even possible on several devices at the same time. This makes it quick and easy to find the right perspective and take a video or photo. The photos are usually saved both on the drone's local memory and on the end device.
As a rule, one device must be connected to the remote control.