Detailed Description  2.4G BIG LAMA 4CH R/C Helicopter EK1H-E515,2.4G RC helicopter,ESKY RC Helicopter Specification:  (1).Main rotor diameter: Φ460mm;  (2).Weight:410g; (3).Length:510mm,width:110mm, height:260mm;  (4).Power system:370 motor*2;  (5).KIT/ARF/RTF:RTF;  (6).Transmitter:4 CH (including training switch and simulator port); (7).Mix controller:2.4GHz Receiver and 3in1 Controller; (8).Servo:digital servos;weight:7.5g;torque:1.3kg.CM;speed:0.12S/60°  (9).Battery:11.1V 800mAh Li-polymer battery.  Products features:  (1).Outdoor flight helicopter,great power against wind.  (2).Ready to fly out of box. (3).the new 2.4G remote control system adopts Advanced Spread Spectrum technology and digital FSK (Frequency Shift Key) coding technology.This combined with four digital servos, ensures rapid response, precise control and nimbler movement.  (4).With this system, several flyers can operate simultaneously within the same area, ensuring a safe and fun flying experience.  Packing explain:Gift boxInner packing gift boxOuter packingtwo gift boxes in one carton Packing protecterfoamGW Gift box materialcard board 260#NW L*W*H(RTF)646*300*205mmL*W*H(RTF)665*315*435mmSell Mode:Item number KitTransmitterReceiverServo3in1BatteryChargerEK1H-E515A(RTF)Kit EK2-0404HEK2-0426EK2-0508*2EK1-0709EK1-0188EK2-0851