RC Functions:Pitch-axisRoll-axisCollective pitchMotor speedOthers: 3D switch, PIT and PLT adjustment and lockSpecification:(1). Main Rotor Diameter: 622 mm(2). Tail Rotor Diameter: 135 mm(3). Overall Length: 600 mm(4). Receiver: RX- PCM-701(5). Drive System: 380 PH(6). Battery: Ni-MH 12V 650mAh(7). All-up Weight: 600��635g (Battery included)(8). Transmitter: WK-PCM-0701(9). Gyro: WK-G007(10).Speed Controller: WTS-20A-02(11).Servo: weight 9.1g / speed 0.12sec/60��/ torque 1.1kg/cm / dimension 22.5X11.8X27mmFeatures:1). NOR collective pitch structure make perfect 3D maneuvers such as roll, inverted, and swoop flights.2). The design of metal tail, metal swash plate and metal rotor head is of legerity, innovation, precise and stability. The autorotation landing system, made of high quality one-way bearing, maximally protects your helicopter from damage .3). tail blades driven by belt provide easy adjustment, stable flight, and low noise.4). 380 motor as the main power is powerful and makes the flight much stable.5). 7-ch transmitter PCM701 with adjustable PIT parameter, throttle curve, and servo exponential function.Optional accessories:Li-Po BatteryBrushless motorBrushless speed controller