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X400A is not simply a quad-copter

High definition camera, FPV real-time transmission, 3D rolls, one-key roll, throttle limit and so on, all these great features make X400A the special quad-copter that would change player’s photographing habit.

FPV Real-Time

MJX-X400A is coming with loadable FPV module, which includes high definition camera #C4005 and cell phone stand. FPV, namely “First-person Point of View", it is a wireless transmission device that is added to the remote control aerial model. All the real-time view can be seen through the screen on the ground; it is a new playing idea and big innovation of the high-tech area; it provides real-world experiences and more excitement to players.

Mounted with camera set #C4005 and install the “MJX C4005 FPV"software to smart phone, the photos and videos that taking by the quad-copter can be seen alive when the model is flying.Mounted with camera set #C4006 and install the “MJX C4006 FPV" software to smart phone, the photos and videos that taking by the quad-copter can be seen alive when the model is flying.

FPV Bracket
( not included in the package)


For Apple IOS system, please go to the APP store to download the software “MJX C4005 FPV"or “MJX C4006 FPV". For Apple IOS system, please go to the APP store to download the software “MJX C4005 FPV"or “MJX C4006 FPV".


Power on the model, the FPV indicator light (at the bottom of the quad-copter) is on. Enter into settings of the smart phone, open WIFI, search “MJX C4005 FPV ****“or “MJX C4006 FPV ****“and connect it. After successful connection, exit settings. Open “MJX C4005 FPV" software or “MJX C4006" at the smart phone; click "" to enter into the control interface to watch the real-time video.




  • Figure 1

  • Figure 2

  • Figure 3

  • Figure 4

  • Figure 5

  • Figure 6

  • C4005/C4006 installation
    1.The camera should be fasted to the interface at
    the bottom of the quad-coper. (As figure 1)
    2.Fix the module by screwing clockwise.(As figure 2)
    3.The cable camera interfacing with the camera head. (As figure 3)
    4.The camera cable is inserted under the C4005 / C4006
    connector body.(As figure 4)
    5.The antenna is inserted into the sleeve on a tripod and
    tighten the screw clockwise.(As figure 5)
    6.4.Install the antenna to the antenna bracket.(As figure 6)


    When the model is flying in headless mode, press one key return button, the model will fly towards player. Press the one key return button again or operate the forward /backward control stick, the model will exit the one key return function.


    Enter into headless mode:

    Once signal of the model and the remote control is successfully connected, press the function button located at top right of the remote control for 2 seconds, the remote control will send out two beep ounds and there will be letter of “stick mod" flashing on the LCD screen, the model’s indicator light turns from constant ‘ON" to “flashing". That means the model is in headless mode.

    Exit headless mode:

    When the model is in headless mode, press the function button at top right of the remote control of 2 seconds, the remote control will send out 2 beep sounds and the letter “Stick mod" is keeping constant “on"; the model’s indicator light turns from flashing to constant “on". That means the model has exited the headless mode.

    Check up on the direction of the model in headless mode:

    When the model is in headless mode, flight direction proof is needed. Set the head of the model ahead of the player, turn both of two control sticks to the lower right corner for about 2 seconds, the model’sindicator light will turn from slowly flashing to quick flashing and flight direction proof is finished.

    3D flips“n"rolls:

    When the quad-copter is flying up to 3 meters high, slide the NORM/PRO switch to the "PRO" postion.There are two ways available to achieve the 3D Roll action: 1. Press the 3D roll function button, the quad-copter will automatically roll forward. 2.Push the throttle control stick to the top,then, push the roll action stick to the limit of any rolling direction(forward/bacward/left/right),the copter will perform the roll action accordingly,loosen the roll control stick right away and slightly push down the throttle control stick once roll action is finished.

    6-Axis GYRO

    The latest 6-axis flight control system, permits super stable flight.

    2.4GHz Radio control technology

    The 2.4GHz radio technology has become the mainstream in radio control domain. Its transmission distance is up to 10 meters, this is a significant advantage over the 27MHz radio technology. Nowadays, low energy consumption and microminiaturization have become the active demand of the radio communication product; 2.4GHz radio technology satisfied this requirement very well.

    Rapid response speed

    2.4GHz is a special frequency range, if changed to the familiar frequency as we know,it equals to 2400MHz.Hence, it is also named as high frequency. Generally speaking, high frequency does not cause signal interference. The frequency range of 2.4GHz comes to fruition firstly in signal anti-interference. This year, signal interference occurs from time to time in the remote control playing gathering. Someone even doubt that high-voltage induction coil that caused by the spark of the car engine may bring signal interference.But, do not worry. The 2.4GHz does very well in this aspect. Signal interference will not occur even though multiple helicopters are played at the same time.

    Powerful anti-interference capability

    Take 72MHz for example, if using the Twentieth channel (72.190MHz), then, the transmitter use the exact 72.190MHz for transmitting signal only, and the receiver is also received the signal which is sending from 72.190MHz, in case that this channel is encounter obstacle, the radio communication will be presented. But the 2.4GHz system uses the high frequency range for sending signal, signal interference problem will not occur. Let’s take the FHSS frequency hopping pattern that Futaba 2.4GHz system adopts as an example, it takes the advantage of spread hopping way when sending signal. Imagined that there is a 16 lane highway and the 2.4GHz signal keeps moving from lane to lane, thus, the chance of signal interference is very small.

    The transmission speed of radio wave is about 300000 km/s.
    27-72MHz wavelength
    2.4GHz wavelength
    2400MHz wavelength 2500MHz FHSS Frequency Hopping Pattern
    Signal at Frequency hopping

    Videography function

    With Intelligent Identification PCB, the helicopter can be mounted with high-pixel camera and take video when the helicopter isflying. The videography function can be playedimmediately after installation of the videographydevice. Installation is very easy and convenient;the camera angel is adjustable and the camera can be turned on or turn off when necessary. The video will be generated as AVI format

    ( not included in the package)

    #C4002 could be loaded to the quad-copter for photos and videos taking.


    Colorful searchlight not only makes night flight much easier,but also makes the helicopter lookmore attractive.