You can pair the Tello with a third-party gamepad controller, but it’s easy enough to fly using the simple, intuitive Tello app. Thanks to its link with DJI (the Tello’s flight controller is made by the drone manufacturer), it’s a great ‘first drone’ for kids or adults looking for a learner model to practice on before moving to a bigger quadcopter like the the DJI Mavic Air.
The included 3.7V 650 mAh battery takes about an hour to charge, and will give you up to 9 minutes of flying time. You can extend your flying enjoyment time with the purchase of extra batteries. The controller will give you up to 120m of control range, but limited to 50m when the FPV mode is active. This still allows you to take videos at fairly moderate distances.

If you’re looking for quality, the Inspire 2 is the best camera drone you can buy that comes ready to fly out of the box. The next best option is the Phantom 4 Pro and after that, the Mavic Pro. If you’re concerned about video quality, just pick one of the three drones mentioned above (which ever one matches your price point) and you’ll be more than satisfied. There are really no other drones that come close to what these three can do. Some people who shoot videos for a living will buy the Mavic Pro, Phantom 4 Pro, and the Inspire 2, because each of them can be useful for different situations.
For those looking for a basic done that has FPV camera capabilities that are still pretty decent, but at a fair price, the Hubsan H502S is definitely the way to go. There are minimal features, mostly just the GPS function, which is a nice touch that makes all the difference, and you get up to 12 minutes of flying time on a single charge. You also get Return to Home, Follow Me, one-key control, the whole set.
Irrespective of the dimensions of your quadcopter, they must not go higher than 400ft above the ground. Likewise, you must always maintain a clear line-of-sight with the machine at all times. You are also expected to adequately inspect your device before each flight session, to ensure its readiness and airworthiness. This is necessary to prevent unnecessary flight accidents.  
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. 
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