Walkera Dragonfly 4#3b 2.4ghz 4ch Rc Helicopter RTF w/ Alloy Metal Rotor Head Double Brushless Motor

DESCRIPTIONNewest Double Brushless Motor Desgin: TWO Brushless Motor! TWO ESCs!!Why need to think? Like it? Get it Now!Walkera HM 4-3B Dual Brushless Motor Edition is equipped with Dual High Performance Brushless Motor (Main Motor and Tail Motor), Dual Electronic Speed Controller, Redesigned Body Frame, Metal Swashplate, Metal Blade Clamp and Metal Rotor Head. To compare it with other palm size helicopters, 4#3B Brushless Motor Edition offers more stable, slience and smoother flight. It is not a 2-channles toy. It is a professional rc helicopter for players from intermediates to experts. Here are some highlight features of the Walkera Dragonfly 4#3B 2.4GHz 4CH Double Brushless Motor Simplified 90oswashplate with CNC-cut rotor head features durability and stability.New 2.4G technology with the functions of automatic identification, precise code pairing and strong anti-jamming.High performance WK-WS-12-003 motor powered by 3.7V 400mAh Lipo offers 7- to 9-minute flight time, depending on your flight mode.SPECIFICATIONMain Rotor Diameter: 202mmTail Rotor Diameter: 48mmOverall Length: 213mmAll-up Weight: 48g (Battery included)Drive Motor: WK-WS-12-003 Brushless MotorTail Motor: WK-WS-10-001 Brushless MotorBattery: 3.7V 500mAh Li-PoReceiver: RX-2406BTransmitter: WK-2401Gyro: Built-inServo: weight 3.5g ; speed 0.11sec/60o(4.8V); torque 0.30kg/cm(4.8V);dimension 17.5X6.5X21.5mm minimize