Built with gyro, make the helicopter fly stable and easy to control, cost effectiveProduct Function: Up/down, turn left/ right, forward/backward, 360 degree precision persioning, hover21.5*3.8x8.3mmMotor: 07main motor*2 04 tail motor*1Battery: 3.7V 150mAh Li poly battery (Japan Seki protection board)Charging time: About 2-3 hoursFlying time: About 6--7 minutesControlling distance: About 10 metersBattery for controller: 6*AA"batteries(not included)Frequency: A/B/C channel can be selectedLight: With LED flashing light Avaliable for Ipad, Iphone, ItouchTwo speed:with Low/high speed,suitable both for novices and skilled playersCertifications: all authenticate by B.V CE,EMC,ROHS ,REACH,EN71-1-2.2,EN60825,2006/66/EC,EN6215,Cadmium,Phthalate,ASTM936,CPSIA,UN38.3