Attop YD - 822 Remote Control Combat Quadcopter Set from GearBest.com

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product link:http://www.gearbest.com/rc-quadcopters/pp_218333.html Description: Brand: Attop Model: YD - 822 Frequency: 2.4GHz Main Content: 2 quadcopters, 2 transmitters 4CH Function: Forward, backward, left/right side flying, 3D rollover, hand throwing, RC quadcopter VS RC quadcopter Control Distance: 70 meters Charging Time: 80 minutes Flying Time: 10 minutes Battery for Quadcopter: 3.7V, 220mAh 15C Battery for Transmitter : 4 x 1.5AA