(1). Main rotor diameter: Φ460mm (2). Weight: 410g(3). L*W*H: 510*110*260mm (4). Power system: 370 motor*2 (5). KIT/ARF/RTF: RTF (6). Transmitter: 2.4GHz 4CH (including training switch and simulator port)(7). Mix controller: 2.4GHz Receiver and 3in1 Controller(8). Digital servos: weight:7.5g; torque:1.3kg.cm; speed:0.12s/60° (9). Battery: 11.1V 800mAh Li-polymer battery