Specification:

Brushless Motor: WK-WST-21-003
Brushless Speed Controller: WK-WST-20A-1
All-up Weight: 278g (Battery included)
Tail Rotor Diameter: 121 mm
Main Rotor Diameter: 440 mm
Overall Length: 432 mm
Gyro: 3 Axis
Battery: 7.4V 1000mAh Li-Po
Receiver: RX-2437S
Transmitter: WK-2402 Rudder Servo: wk-7601 weight 6.0g / speed 0.08 sec/60°(4.8V)torque 1.0kgf.cm /dimension 21.5*11.8*21.7mm Servo: wk-7.6g-6 weight 8.5g / speed 0.09sec/60°(4.8V)torque 0.9kgf.cm /dimension 22.5*11.5*24mm