If you are a beginner just learning to fly with these cheaper drones, take your time to learn the controls by flying in a safe area that is a wide open space, with no wind, and no obstacles. At first, fly low to the ground until you can maneuver your drone correctly. Practice flying on a single battery charge and then let the drone cool down for ten minutes before flying more.
For example, OPTI has a built-in Optiflow Sensor (a downward facing sensor), which functions by picking out the patterns on the ground to ensure that the drone maintains a straight position. ATTI, conversely, works a bit differently. With the ATTI, the drone employs other techniques apart from the external sensors to keep the drone in the right orientation and altitude. Thus, the drone can hover in place, or drift slightly around with the wind serving as a push. You will also find a GPS in some drones, and they help the drone to maintain coordinated and precise flights and landings.
For both DJI drones, it's not necessary to go into depth about the basic functions, like take off, landing and navigating. You pay a premium, but these are definitely the top drones in the sky both because of their ease of use and extra features. On one battery, the Mavic flew for 21 minutes, in many different modes, speeds, and altitudes. The Tap to Fly feature on the Mavic was the biggest disappointment. The remote screen is too vague to simply place your finger where you want to go.
With headless mode, you don’t need to worry which way the drone is facing because your controller is the basis for the drone’s orientation. In other words, whichever way the controller is pointing is the way the drone is pointing. This will help you master all aspects of drone flight, and as such it is one of the top features that beginners should consider.
Registering is easy. If you have a toy drone, you probably don’t need to register it, but for those of you buying camera drones, here’s how it works. You just go to registermyuas.faa.gov, fill out a few important questions like what model drone you have, where you live, and your email address. Then you pay a small license fee, print out your new registration number, and attach it to your drone in a place where it can be seen.