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Instead of using a traditional controller, the Parrot AR.Drone uses an iPhone or iPad app.
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It’s really a “quadricopter,” featuring four motor-driven propellers and stabilized by an accelerometer, gyrometers and an ultrasound altimeter.
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It comes equipped with two video cameras, one on the bottom and one set to a wide angle at the front.
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The camera on the bottom actually aids with stabilization as well.