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.
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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. 
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.
It can take aerial shots with the altitude hold function, accessed by releasing the throttle. The drone hovers in place to get the shot. If you’re first starting out, you can operate it in headless mode to get a better idea of what it can do. It has a one-key return, and you can even perform aerial tricks and flips once you’ve mastered necessary controls.
Aside from its tiny and hyper-portable design, the Spark’s biggest feature is arguably its plethora of intelligent flying modes. In addition to DJI’s standard stuff, the Spark sports a handful of brand-new modes, including Rocket, Dronie, Circle, and Helix (more on those in a moment). The drone also comes with gesture recognition abilities, which allow it to be operated without a smartphone or controller.

Speedy and nimble, the Mavic Air is great fun to use beyond its image-capture abilities – though these are stellar, too. The 1/2.3-inch CMOS sensor sits on a three-axis mechanical gimbal that reduces vibrations and ensures silky smooth footage, with 4K video at 30fps offering plenty of detail. It’s only in low-light that you’ll notice it struggling.

Generally speaking, drones that cost less than $100 bucks aren’t worth your time. They’re flimsy, they lack advanced features, and they’re almost always squirrely as hell in the air. But Tello is different. Despite the fact that it retails for only $99, it boasts a boatload of high-end features and functionality. Under the hood you’ll find a 14-core Intel vision processing chip, flight stabilization tech from DJI, a 5 megapixel camera capable of shooting 720p HD video, and a battery that gets you 13 minutes of flight time.

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