Detailed Description  2.4G KOB 4CH R/C Helicopter EK1H-E304,2.4G RC Helicopter,ESKY RC helicopter Specification:  (1).Main rotor diameter: Φ340mm  (2).Weight: about 226g (3).Length: 415mm,width:77mm, height:174mm (4).Power system: 180 motor*2pcs (5).Transmitter: Standard 4 CH 2.4G transmitter(including training switch and simulator port) (6).Mix controller: 4 in 1 mix controller (Including gyro,mixer,ESC,receiver) (7).Servo:digital servos;weight:7.5g;torque:1.0kg.CM;speed:0.1S/60° (8).Battery: 7.4V 800mAh Li-polymer battery set  Product description::  (1). Co-axial.cointer-dourotating double blades system; (2). Ready to fly out of box;  (3). he new 2.4G remote control system adopts Advanced Spread Spectrum technology and digital FSK (Frequency Shift Key) coding technology.This combined with two 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.  RTF:   KOB, has been completely assembled in the factory, it can fly after finishing charging the battery. Electronic system has been completely adjusted by our engineer before packing, no adjustment is needed. Standard outfit include: a kit, a transmitter, a set of charger, main blade, a chargeable battery, transmitter battery unit (8pcs), a ESKY softdog and a Instructional Video CD for computer,which are ready to fly out of box.  Packing explain:Gift boxgift boxOuter packingtwo gift boxes in one cartonPacking protecterfoamL*W*H600*280*415mmGift box materialcard board 260# GW L*W*H580*260*195mmNW Sell Mode:Item numberKitTransmitterMix controller ServoBatteryChargerSweiching adaptersoftdogEK1H-E304RA(RTF)kitEK2-0404HEK2-0708EK2-0508*2EK1-0181EK2-0851OptionalEK2-0900A