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RTF tandem rotor semi-scale RC helicopter. Four motors and four sets of blades. This is the best 4ch helicopter to come out of the Walkera factory... ever... A must have RC helicopter.

Specification:
1). All-up Weight: 768g (Battery included)
2). Main Rotor B: 450mm
3). Main Rotor A: 450mm
4). Overall Length: 575mm
5). Battery: 7.4V 2200mAh Li-Po
6). Receiver: RX-2409
7). Drive System: 4 X 370SH
8). Transmitter: WK-2401
9). Servo: WK-7.6-3 weight 8.5g;speed 0.11sec/60o(4.8V); torque 0.9kg.cm(4.8V); dimension 22.5X11.5X24mm

Features:
1). State-of-the-art workmanship.
2). New 2.4G technology, with the functions of automatic identification and precise code pairing, can allow above 20 aircrafts to fly in the same field and same time.
3). It utilizes the 2.4G 3-in-1 receiving circuit with the functions of servo extent adjustment and built-in gyro sensitivity adjustment.
4). High performance 4 * 370SH motor powered by 7.4V 2200mAh Lipo offers 10 minute flight time, depending on the flight modes.

Shipment Includes:
1 x Walkera 38 2.4G Metal Upgrade Edition RC Helicopter - Ready To Fly Package with everything you need.