4CH 2.4G RC helicopter with built-in Gyro.The first RC helicopter that can fly outdoor in wind weather (outdoor wind grade 3-4).Pioneering single propeller design， it can greatly avoid the resistence of wind.High quality ultrathin metal canopy with ultra light weight and strong resistance of impact.High tenacity rotor wing.Better flying performance than ALIGN T-REX 100S: extremely steady and extremely agile.The remote control is designed with a LCD disply for easier and more precise operation.Freely flying up， down， forward， backward， left to fly， right to fly， hover with rapid response.It is suitable for both indoor and outdoor flying (the wind grade should be no more than 4).22cm mini helicopter.R/C Distance: About 80 metersFlight Height: About 80 metersFlight Time: About 5-6minutesCharging Time: About 30 minutesBattery for helicopter: 3.7V 120mAh/15C Li-PolymervBattery for controller: 6 * AA batteries (not included)1*helicopter1*controller1*USB1*tail blade1*changer2*lithium battery