UDI R/C VOYAGER U845Wifi User manual

U845Wifi
User Manual

Catalog
Important Statement 3
Safety Precautions 3
Safe Notice for Drone Battery 4
Charging Instruction for Drone Battery 5
Check List Before Flight 5
Instruction for Drone and Transmitter 6
Flight Operation Instruction 10
Functions Introduction 13
Propeller Installation Diagram 15
To know your APP 15
Spare Parts 21
Troubleshooting Guide 22
2

1. Important Statement
Thank you for buying UDIRC's product. People who under 14 years old must not
use the product. Please read this brochure carefully before using the product. You
are regarded as accepting all content in this user manual when using this drone.
This product is not an ordinary toy but a piece of complicated equipment which
is integrated with professional knowledge by mechanic, electronic, air mechanics
high-frequency emission etc. The users promise to be responsible for their behavior
when using this product and relevant APP. The users promise to use the drone
and relevant APP for legal purpose, and agree to obey above rules and local laws
and regulations.
We undertake no liability for those accidents caused by environment, illegal
behavior, improper operation and refitting of the drone after sale of the product.
We have entrusted the distributor to provide technology support and after-sale
service. If you have any questions about use, operation, repair etc., please contact
the local distributor.
This drone is suitable for experienced RC drone user aged 14 years or above.
This product contains small parts, please put it out of child’s reach.
The flying field must be legally approved by your local government. Do not fly the
drone near the airport. Keep far away from the airport more than 5km when
flying a RC drone. Flying field must spacious enough and we suggest at least
8M (length)*8M (width)*5M (height).
(1) Flying Area
* Keep the packing and user manual so as to refer to the
important information whenever.
2. Safety Precautions:
(3) Keep away from obstacles and crowd
The speed and status of a flying RC drone is uncertain and it may cause potential
danger. So the user must keep away from crowd, tall building, power lines etc.
when operating a flying RC drone. Do not fly a RC drone in rainy, storm, thunder
and lighting weather for the safety of user, around people and their property.
(2) Use correctly
For safety elements, please only use UDIRC’s spare parts to replace the damaged
parts. Improper assembly, broken main frame, defective electronic equipment or
unskilled operation all may cause unpredictable accidents such as drone damage
or human injury. Please pay special attention to safety operation and have good
knowledge of accident responsibility that the user may cause.
3

(4) Keep away from humid environment
The drone inside is consisted of precise electronic components. Humidity or water
vapor may damage electronic components and cause accident.
(5) Safe operation
Please operate the RC drone in accordance with your physical status and flying
skill. Fatigue, listlessness and improper operation may increase the rate of
accident.
(6) Keep away from rotating parts
Rotating parts like propellers or motors may cause serious injury and damage.
Keep face and body away from rotating parts.
(7) Keep away from heat
(9) Do not touch the hot motor to avoid being burnt.
(10) Please use the recommended charger only. Power off the
drone before cleaning the RC drone. Check the USB cable,
charging plug etc. regularly to ensure they can work well. If
there is any damage, stop using it immediately till it’s fixed
well.
The RC drone is made of metal, fiber, plastic, electronic components etc. Keep
away from heat and sunshine to avoid distortion and damage.
(8) The drone should be controlled within max control distance.
Do not fly the drone near tall building, high voltage cable or
other place with signal interference. Or may cause signal
interruption and the drone will out of control, which may
result of accident.
3. Safe Notice for Drone Battery
* Do not put the battery on high temperature place, such as fire or heating
device to avoid damage or explode.
* Do not use the battery to crash or hit hard surface.
* Do not put the battery in water and keep it in dry place.
* Do not open the battery.
* Do not leave the battery without supervision when charging.
* Make sure that there is no short circuit of the power wire.
* Please use the recommended charger only.
* Check the charger’s wire, plug, surface regularly. Do not use any broken
charger.
* If do not fly the drone more than one week, maintain the drone battery with
about 50% power to keep its performance and working life.
4

5. Check List Before Flight
1) Make sure the drone battery and transmitter battery are fully charged.
2) Make sure the Left Stick of the transmitter in the middle position.
3) Please strictly obey the order of turn on and turn off before operation. Turn on
the transmitter power first and then turn on the drone power before flying; turn
off the drone power first and then turn off the transmitter power when finish
flying. Improper turn on and turn off order may cause the drone out of control
and threaten people’s safety. Please cultivate a correct habit of turn on and
turn off.
4) Make sure the connection is solid between battery and motor etc. The ongoing
vibration may cause bad connection of power terminal make the drone out of
control.
5) Improper operation may cause drone crash, which may arouse motor defective
and noise, and then effect the flying status or even stop flying. Please go to the
local distributor to buy new parts for replacement so that the drone will return
to its best status.
Li-Po Battery Disposal & Recycling
Wasted Lithium-Polymer batteries must not be placed with household
trash. Please contact local environmental or waste agency or the
supplier of your model or your nearest Li-Po battery recycling center.
4. Charging Instruction for Drone Battery
Power BankPhone Charger
Computer Charging Car Charger
* For faster charging, it is recommended to use a adapter with 5V 2A output current
(not included) to charge the battery
Drone Battery
(1). Connect the drone battery with USB cable first and then choose one of the
method as below picture shown to connect with USB plug.
(2). The red USB indicator light keeps bright when charging. And the light turns
green when fully charged.。
5

6. Instruction for Drone and Transmitter
6.1. Drone
A Propeller
Blue LED Light Blue LED Light
Blue LED Light
Blue LED Light
A Propeller
A Propeller
B Propeller
B Propeller
B Propeller
Blue LED Light
Blue LED Light
Red LED Light
CameraPower Switch
Blue LED Light
Blue LED Light
White LED Light (Front/Head)
Specification
Flying Time 4~6mins Camera Resolution 1280x720P
Charging Time for
Drone Battery
Drone Size Φ210.6*81.5mm 55~65mins
Main Motor 8520x6Drone Battery 3.7Vx2 350mAh
Transmitter Battery 4xAAA Alkaline Batteries2.4Ghz
Drone Weight 99.4g
Propeller Diameter 55mm 40m
Max Image Transmission
Distance/Radius
50m
Max Flying Distance/
Radius
Remote control
6

Exploded View
1
2
3
4
1
2
5
3
4
612
11
10
9
2
1
4
3
8
7
No.
1
2
3
4
5
6
8
9
10
11
12
7
Name
A Propeller (Clockwise)
Clockwise Motor (Red and Blue Wire)
B Propeller (Counterclockwise)
Counterclockwise Motor
(Black and White Wire)
Lower Cover
Switch Board
Camera Holder
Drone Battery
Receiver Board
Upper Cover
Battery Cover
Camera
No. Name
7

6.2 Transmitter
Power Switch
Left / Right Rudder Trimmer
Turn On Direction Trimming Indication
LCD Display Left / Right Flying
Trimmer
Forward / Backward
Flying Trimmer
Right Stick
(Forward / Backward
/ Left / Right)
Power Indicator Light
Mobile Phone Screen
Left Stick
(Throttle / Rudder)
Note: Smart phone is not included.
Lens Hood
High / Medium /
Low Speed Mode
(Press Down)
360°Flip (Press Down)
Mobile Phone Holder
Heading Hold Mode
Take Off / Landing /
Emergency Stop Button
Strong / Weak
Emission Signal
Transmitter Battery
Indication
Forward / Backward
Trimming Indication
Left / Right Flying
Trimming Indication
Throttle Display
High / Medium /
Low Speed Mode
Indication
Left / Right Rudder
Trimming Indication
8

Battery installation:
Open the battery cover on the back side of the transmitter and put 4 alkaline
batteries (AAA, not included) into the box in accordance with electrode
instructions, as below Picture shown.
+ -
+-
- +
-+
Battery
Cover
4*1.5V
Alkaline Batteries
1. Make sure the electrodes are correct.
2. Do not mixed use new and old batteries.
3. Do not mixed use different kinds of batteries.
4. Do not charge the non rechargeable battery.
Notice:
Brief Introduction for Button Functions
Left / Right
Rudder Trimmer
Press the button till the drone becomes balance if the drone rotates to the
left or right.
Right Stick Move the Stick to forward / backward / left / right to fly the drone forward /
backward / left / right.
Left Stick Move the Stick to forward / backward / left / right to fly the drone up / down /
turn left / turn right.
High / Medium /
Low Speed Mode Press this button to switch to High / Medium / Low Speed
Forward /
Backward Flying
Trimmer
Press the button till the drone becomes balance if the drone drifts forward
or backward.
Left / Right Flying
Trimmer
Press the button till the drone becomes balance if the drone tilts to the left
or right.
Power Switch Move the power switch to the right to turn on the transmitter, and to the left
to turn off.
Heading Hold
Mode
Press the button to enter heading hold mode, and press again to exit from
heading hold mode.
Take Off / Landing
/ Emergency Stop
Button
Press the button and the drone will fly up automatically. Press the button again
and the drone will landing on the ground automatically. Press and hold the
button more than 1s, the drone propellers will stop and fall down immediately.
360°Flip Mode Press down the right stick to do 360°flip.
9

Flight Operation Instruction
7.1 Frequency Pairing
(1). Turn on the transmitter switch (Picture 4) and the power indicator light
flashes rapidly. Push the Left Stick all the way down to the lowest position
and then release. The Left Stick will back to the middle position automatically.
(Picture 5) The power indicator light flashes slowly, which indicates the
transmitter is ready for frequency pairing.
(2). Install the battery to the mounted box in the drone and then power on the
drone. (Picture 6）
(3). Put the drone on the flat surface, the drone body lights turn from flashing to
solid bright, which indicates successful frequency pairing.
Important Notice: Please make sure the drone is placed on the horizontal position
after powering on the drone, so that the drone can work well.
Picture 1
Attaching your Mobile Phone to Transmitter
1. Press the self-locking switch on the top right side of the mobile holder and
push the holder to a fully open position as Picture 1 shown.
2. Place the mobile phone facing frontward position, pull the mobile phone holder
down and press tightly as possible to secure the mobile phone and transmitter
(please note that do not touch the mobile phone button) as Picture 2.
3. Insert the lens hood into the slot and make sure the lower edge of the lens
hood is as close to the mobile phone as possible as Picture 3.
Picture 2 Picture 3
Picture 6
Picture 5Picture 4
10

7.2 Checking
7.3 Calibration Instruction
(4). Push up the Left Stick slowly to fly up the drone, and pull down the Left Stick
slowly to the lowest end, then the drone will land on the ground slowly.
(5). It’s recommend to repeat Steps 4 above to practice.
(1). The camera is the drone front. The back of the drone should face the user and
the front of the drone should face forward.
(2). Power on the drone and check the direction of the rotating propellers. The left
front/ left rear/right A propellers rotating clockwise while the right front/ right
rear/ left B propellers rotating counterclockwise.
(6). Adjust relative transmitter Trimmer button to adjust the rudder if the drone tilts
to one side when flying.
Please follow below steps to calibrate the drone if the drone becomes imbalance
after crashing during the flight, and can not be adjusted by trimmer button and
cause difficult operation.
(1). Power off the drone, then turn off the transmitter switch.
(3). Move the Left Stick and Right Stick as Picture 7
shown to start the motor and then release. Then
push up the Left Stick to fly up the drone to
certain altitude and then release. Picture 7
(4). Do not move the Left Stick before successful
calibration. Push the Right Stick as Picture 10
and then release. The drone body lights flash,
which indicates that the drone is calibrating. When
the drone body lights remain solid, which indicates
successful calibration.
(3). Power on the drone and put it on a flat surface in a horizontal position. The
drone body lights change from flashing to solid bright, which indicates
successful frequency pairing.
Picture 10
(2). Turn on the transmitter switch, push the Left Stick all the way down to the
lowest position (Picture 8) and then release. The Left Stick will back to the
middle position automatically (Picture 9). The transmitter is ready for
frequency pairing mode.
Picture 8 Picture 9
11

Left Stick
If the drone rotates to the left or right: Press the Right Rudder Trimmer till balance if the drone rotates to the left, and press the Left Rudder Trimmer till balance if the the drone rotates to the right.
If the drone tilts forward or backward:
Press the Backward Flying Trimmer till balance if the drone drifts forward, and press the Forward Flying Trimmer if the drone drifts backward.
Right Stick
If the drone tilts to the left or right:
Press the Right Flying Trimmer till balance if the drone drifts to the left, and press the Left Flying Trimmer till balance if the drone drifts to the right.
Tip: Each time before the drone taking off, move the left and right stick down and
in as Picture 7 shown to start the drone, then push up the throttle stick.
Or press the Take Off Button.
7.4 Flying Control
Push the Left Stick up to fly the drone up.
Pull the Left Stick down to fly the drone down.
Move the Left Stick to the left to rotate the drone to the left.
Move the Left Stick to the right to rotate the drone to the right.
Pull the Right Stick down to fly the drone backward.
Push the Right Stick up to fly the drone forward.
Move the Right Stick to the left to fly the drone to the left.
Move the Right Stick to the right to fly the drone to the right.
12

Two Take Off Methods
Two Landing Methods
Functions Introduction
2. Method 2 (One Button Take Off): Press the Take Off /
Landing / Emergency Stop Button (Picture 11) , the
drone will fly up automatically and keep flying at an
altitude of 1.2 meters approximately.
1. Method 1 (Take off): Push the Left Stick and Right
Stick as Picture 7 shown to start the motor and
then release. Then push up the Left Stick to fly up the
drone to certain altitude and then release the stick.
▲Emergency Stop: When the drone in emergency situation and going to hit the
walking people or obstacle etc., press the Take Off / Landing / Emergency Stop
Button immediately and hold it for more than 1s. The propellers will stop
immediately.
Tip: Do not use the emergency stop function unless in emergency situation.
The drone will fall down suddenly after all propellers stop.
1. Method 1 (Landing): Push the Left Stick all the way down to the lowest position
and hold it till the motors stop and the drone landing on the ground.
2. Method 2 (One Button Landing): Press the Take Off / Landing / Emergency
Stop Button once shortly, and the drone will land on the ground automatically.
(Do not move the throttle stick before landing or this function will turn off
automatically)
Take Off / Landing /
Emergency Stop Button
Picture 11
High / Medium / Low Speed Mode
1. Low Speed Mode is suitable for beginner.
2. Medium Speed Mode is suitable for
intermediate pilots.
3. High Speed Mode is suitable for expert to
experience aerial stunt in outdoor. High / Medium / Low
Speed Mode (Press Down)
Altitude Hold Mode
Altitude hold mode indicates that the drone maintains
a consistent altitude while allowing the user to use normal
flying functions. It makes it easier to control the drone for
beginner and more stable for aerial photography.
Push the Left Stick up (down) to fly the drone up
(down) at certain altitude and then release the Stick. The
Stick will back to the center position (Altitude Hold Center)
as Picture 12 shown. And the drone will keep flying at current
altitude. Repeat above steps if you want to change the drone altitude.
Picture 12
Altitude Hold Center
13

To turn on Heading Hold Mode, press Heading Hold Mode button and
the drone LED lights flash, which indicates the drone enters heading
hold mode.
To turn off Heading Hold Mode, press Heading Hold Mode button
again and the drone LED lights turn solid, which indicates the
heading hold mode is off.
Right
Rear
RightLeft
Front （Green Light)
Rear
Left
Front （Green Light)
Prerequisite: Position the drone in such a way that its front is your front (see Picture 1).
Tip: Do not change the orientation of the transmitter (see Picture 2) after entering heading hold mode.
Picture 1 Picture 2
Heading Hold Mode Button
* Drones generally have a front and rear indicated by LED lights or colored propellers.
By default, the users are required to tell the front and the rear of the drone when flying.
Under heading hold mode, the users can operate the drone without worrying about the
orientation (left is left and right is right all the time, regardless of where your drone is
pointing at).
Heading Hold Mode is designed for beginners and users who fly the drone in daylight or at a
far distance.
When the drone in heading hold mode, push the Right Stick to forward / backward / left / right,
and the drone will fly to forward / backward / left / right accordingly.
Heading Hold Mode
Flip Mode
Press the Flip Mode button when the drone is flying, and
you will hear constantly beep, which indicates flip mode
is ready. Push the Right Stick to forward / backward /
left / right to utmost and then release the stick. The
drone will do 360° flip in corresponding direction. After
that the drone will exit from flip mode automatically.
Tip: When the drone LED lights flash, or the
transmitter issues constantly sound of “di--di”
low battery alarm, the flip mode will shut down
automatically.
Warning: Flying field must spacious enough and the
flying height must at least 5M when doing
a flip, or danger may occur.
Flip Mode (Press Down)
14

Propeller Installation Diagram
Picture 13
Picture 14
1. To remove the propeller, pull up the propeller and remove
it from the motor axis as Picture 13.
2. To install the propeller, align the propeller hole to the motor
axis, press the propeller to the motor axis. Make sure the
propeller is perfect match with the motor axis as Picture 14.
Tip: please use a new A Propeller to replace the damaged
A Propeller, and B Propeller to replace the damaged B
Propeller.
Additional Instruction of Receiving Board
Plug the right-front #1 red plug (red and blue wire) into #1 red port.
Plug the right #2 white plug (white and black wire) into #2 white port.
Plug the right-rear #3 red plug (red and blue wire) into #3 red port.
Plug the left-rear #4 white plug (white and black wire) into #4 white port.
Plug the left #5 red plug (red and blue wire) into #5 red port.
Plug the left-front #6 white plug (white and black wire) into #6 white port.
6
5
43
2
1
1
2
3
4
5
6
1
2
3
4
5
6
To know your APP
Download and Install the APP: Flyingsee
The APP is suitable for mobile phone with iOS and Android system,
please download from the mobile phone software store:
1. For mobile phone with iOS system, please search Flyingsee in APP Store.
When the drone in low battery, the transmitter will beep constantly to remind the
user to land the drone as soon as possible. The flip function will turn off
automatically when the drone in low battery.
Low Battery Alarm
When the transmitter in low battery, the transmitter will beep to remind the user to
land the drone to replace the batteries as soon as possible. Or the drone may out
of control.
Out of Range Alarm
When the drone flying out of the max remote control distance, the transmitter will
beep to alarm the user to fly back the drone immediately. Or the drone may out of
control and fly away.
15

Frequency Pairing between Mobile Phone and Drone WiFi:
1. Install the battery to the mounted box and power on the drone. Put the drone
on the flat surface in horizontal position.
2. For mobile phone with Android system,
please search Flyingsee in Google Play.
3. Scan the QR code on the right or the QR code in
the box to download Flyingsee.
2. Enter “Settings” of the mobile phone, turn on WiFi (WLAN) and choose
udirc-***, return to desktop after successful connection.
3. Click on the icon Flyingsee and click on to enter remote control interface
to experience real time transmission.。
EMERGENCY
Click on the icon
Home Page Real time Transmission Interface
Flyingsee
Learn the operation
of drone
Remote control interface
Media
Help
Explore UDIRC Drone
HOME
4. Click on to enter Virtual Control Interface. At this time the drone
LED lights change from flash to
solid bright, which indicates
successful frequency pairing and the
drone is ready to be controlled via APP.
Important Tip: Ensure the drone is put it
on a flat surface in horizontal position so
that the drone can work well. Or it may
be fail to be controlled.
Virtual Control Interface
00:00
EMERGENCY
Remote control interface
Introduction for APP Icons
Home Page Icons
Explore UDIRC Drone
Learn the operation
of drone
Help
Media
16

Remote Control Interface
Home Page Icon
Click on the icon and back to home page.
L R
Click on the icon to enter virtual reality mode to experience first
person view (only available when using with a VR headset).
Click on the icon again to exit from virtual reality mode.
Virtual Reality Mode
Click on this icon and it turns red. Draw a flight route in the right area. The drone
will fly according to the flight route. Click on the icon again to exit from Flight Route
Setting Mode. The icon turns white.
Flight Route Setting Mode
Remote Control
Virtual Control Stick
The virtual control stick is hidden by default. Click on the icon to turn on the
virtual control stick.
To show the drone’s WiFi signal strength.
Remote Control Signal
EMERGENCY
The icon is red by default. Click this icon and the propellers will stop immediately.
The drone will fall down to the ground straightly.
Tip: Do not use the emergency stop function unless in emergency situation.
Emergency Stop
If there is no TF Card in the drone, the icon shows as .
There is TF Card in the drone, the icon shows as .
TF Card
Click on this icon to set some parameters, and click again to exit.
Click on “Save” to save trimming setting.
Choose “Reset” for factory reset.。
Click on “720P” or “480P” to choose real
time transmission resolution.
Setting
SETTING
Trimming Save Reset
Transmission quality 720P 480P
Gravity Induction Mode
Click on this icon to enter gravity induction control mode. (only available for
flying left / right and forward / backward). Click on the icon again to exit
from gravity induction control mode.
17

If the mobile phone shakes to forward / backward, the Right Ball will
roll forward / backward, causing the drone to fly forward / backward.
Click on this icon to record video. The recording time will show at the bottom of
the screen. Click on this icon again to finish recording.
Video
Click on this icon and it turns red, which indicates that the drone enter Heading
Hold Mode. Click again to exit from Heading Hold Mode. The icon turns white.
Heading Hold Mode
Click on this icon and the icon turns red, the drone will fly down slowly and land
on the ground. All propellers also will stop.
One Button Landing
Click on this icon and it turns red shortly. The drone will fly up automatically and
stay flying at a altitude of 1.2 meters.
One Button Take Off
Click on this icon to view or delete the aerial video and photo. Click on the arrow
to exit.
Media
By default, the drone is in Low Speed Mode “L”. Click on “H” to enter High Speed
Mode.
High / Low Speed Mode
Click this icon, the drone will do 360° flip and the icon will turn red shortly.
Flip Mode
Click on this icon to take photo.
Photo
If the mobile phone shakes to the left / right, the Right Ball will move
accordingly causing the drone to fly left / right.
18

5. APP Flying Control
To Take off
00:00
EMERGENCY
4. APP Calibration Instruction
If the drone becomes imbalance after crashing during the flight, and can not be
adjusted by trimmer button and cause difficult operation, please calibrate the drone.
2. Do not push the Left Ball before successful
calibration. Move the Right Ball as the picture
shown on the right. The drone body lights
flash,which indicates that the drone is
calibrating. When the drone body lights get solid, which indicates successful
calibration and the drone is ready to be controlled.
1. Please refer to the Frequency Pairing between Mobile Phone and Drone WiFi to
calibrate the drone.
Click on One Button Take Off
icon to start the drone. The drone
will fly up automatically and stay
flying at a altitude of 1.2 meters.
Left Ball Right Ball
To fly up or down:
Move the Left Ball up to fly
the drone up and move the
Left Ball down to fly the
drone back down.
To fly right or left:：
Move the Right Ball to the
left to fly the drone to the
left, and move the Right
Ball to the right to fly the
drone to the right.
If the drone tilts forward or backward
Click the “-” of the Forward / Backward
Trimmer to adjust the drone till balance
if the drone tilts forward. Click the “+”
to adjust the drone till balance if the
drone tilts backward.
If the drone rotates to left or right
Click the “+” of the Rotation
Trimmer till balance if the drone
rotates left. Click the “-” to adjust
the drone till balance if the drone
rotates right.
If the drone tilts to the left or right
Click the “+” of the Left / Right Trimmer
till balance if the drone tilts to the left.
Click the “-” to adjust the drone till
balance if the drone tilts to the right.
To fly forward or backward:
Move the Right Ball up to
fly the drone forward, and
move the Right Ball down
to fly the drone backwards.
To rotate left or right:
Move the Left Ball to the
left to rotate the drone to
the left. Move the Left Ball
to the right to rotate the
drone to the right.
19

Tip: Please play the video or photo after coping all aerial photography data to
computer and make sure the play software can support AVI format.
Basic parameter for aerial camera: Video DPI 1280*720P;
Image Size 1280*720P.
7.To view the aerial photography
1. Insert the TF card to the slot in accordance with Picture 15. Make sure the
metal side of the card faces up as the picture.
2. The aerial photo will be saved in your mobile phone and the TF card, while the
video only be saved in the TF card. But you can download the video to the
mobile phone only when the mobile phone connecting with
the drone WiFi and the TF card in the drone.
Tip: Click on the video icon to save a video when ending
recording, or the video cannot be saved.
3. Power off the drone first when finish aerial photography.
Take out TF card and insert the card to a card reader.
Connect the card reader with computer USB port. After a
while, view the aerial photography data from
“my computer”-”mobile disk”.
Tip: Only when authorizing the APP to read your mobile phone media data, or you
maybe unable to view the aerial photography.
To view the photos and videos.
6.Media
Main Menu Media Interface
My Gallery Internal Memory
Home
Explore UDIRC Drone
Learning Drone
Remote control interface
My Gallery
Help
News
Notice
FLYINGSEE 1.0
Note:
1. If you can not find the WiFi signal to connect, turn off WiFi and turn on
again to search and connect.
2. The available WiFi control radius/distance is 40m, please control the
drone within this range.
3. When changing control method from mobile phone to transmitter, exit
from the APP.
Picture 15
20