Wuloo WL-666 User manual

Wuloo Wireless Intercom System
Model: WL-666
FCC ID: 2AOBR-666
E-mail: [email protected]
Facebook page: @WulooOfficial

The intercom system is the latest product of our company. This product carries
a variety of great features including:
Clear voice quality for high-quality communication;
Incredible long-range communication (up to 1 mile);
Easy expandability to allow you to expand to multi-intercoms systems;
Multiple power sources so you can use the power bank for outdoor use;
Special anti-interference features including 10 channels and 3 codes to help
easily solve interference problems;
User-friendly design. This product is shipped with a quick start guide and
detailed instructions. You can also contact the Wuloo service team for
product related questions and help at any time!
We are dedicated to providing customers with a 100% satisfactory service.
Please feel free to contact us if you have encountered any problems with your
purchase. Our fast and friendly team will provide you with the best possible
service!
Customer Service E-mail: suppor[email protected]
Wuloo Official Facebook Page: @WulooOfficial
Page link: https://www.facebook.com/WulooOfficial/
Sincerely
Wuloo Customer service
Welcome!
Thank you for your purchase！

Contents
1. What’s Included in The Box?
1.1 Intercom Overview
2. Getting Started
2.1 Connect AC Power
2.2 Set Code & Channel
2.3 Make an “Address List”
2.4 Test Connecting
2.5 Distribute Different Stations to Different Users
2.6 Notes
3. Advanced Settings
3.1 Volume Setting
3.2 Code & Channel Setting
3.3 Functions Description
3.3.1 TALK
3.3.2 GROUP
3.3.3 MONITOR
3.3.4 VOX
3.3.5 CALL
3.4 Usage Scenario
4. Additional Notes
5. Troubleshooting
6. Adding Additional Units
6.1 Expand to more intercom stations
7. Questions & Answers
8. Warranty

1. What’s included in the Box
1.1 Intercom Overview
Every intercom station has the following accessories. If you purchase additional stations, each new intercom
station will come with its own set of the accessories listed below.
2.Getting Started
The basic steps for setting up your intercom are as follows:
2.1 Connect AC Power
2.2 Set Code & Channel
2.3 Make an “Address List”
2.4 Test Connection
2.5 Distribute Different Stations to Different Users
Note：The examples that follow are for 2 intercom stations. For multiple intercom stations,
follow the same directions as listed below.
Power Port （DC 5V 1A)
Digital Code(A/B/C)
Speaker VOL-
VOL+
Channel Number (0-9)
Function Key
MIC
Indicator Light
AC Adapter Cable

Channel Setting: After setting the code, you can set different channel numbers for each intercom station.
Press and hold any channel number key for 3 seconds to set the channel number of that intercom. To call
any other intercom within your network, press the channel number of the intercom you wish to
communicate with, then press the CALL button . To talk to the user of the other intercom, press and
hold the TALK button as you speak. After communication has ended, each intercom will automatically
restore to the original channel number within 1 minute of intercom inactivity.
2.1Connect AC Power
Every intercom is equipped with an adapter (DC 5V1A) and a cable. Please connect every intercom station
to your local AC power. We kindly suggest that you use the original adapter and cable that was included in
your packaging to turn on your device(s). Please feel free to contact us if you have encountered any
problems with the adapter or cable. We will send you a free replacement as covered by the warranty and
will give you a discount on future purchases if your warranty expires.
2.2 Set Code & Channel
This intercom has 3 codes (A, B, and C) as well as 10 channels
(0-9) available. The right table shows the different frequencies
and codes.
Code Setting: In the area beside the power port, you can
select code A, B, or C for your intercom. We suggest
setting all the stations to the same code to ensure efficient
communication. After setting up your intercom codes, you
can simply start adjusting the channels to make calls. You
do not have to set a new code every time you call a
different user.
CHANNEL
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH0
GROUP
FREQUENCY
462.7250MHz
462.5875MHz
462.6125MHz
462.6375MHz
462.6625MHz
462.6875MHz
462.7125MHz
467.5625MHz
467.5875MHz
467.6125MHz
467.7125MHz
CODE
CODE A:754N
CODE B:743N
CODE C:734N
CODE:743N
Member A
keep 5 meters apart when testing
Member B
Code A
Channel 3
Member A
Code A
Channel 5
Member B
Digital Code(A/B/C)
TALK
CALL
Connect to local AC power

2.4 Test Connecting
The steps for testing your connection are as follows:
2.5 Distribute Different Stations to Different Users
After testing, you can assign different intercom stations and “address list” to different users.
Step 1: Separate intercoms at least 5 meters apart to prevent interference
Step 3: Intercom A (Code A, Channel 3）press the channel
number key “5” , then press the CALL button ；
Step 5: Intercom B（Code A ,Channel 5）if ringing
was successful, press and hold the TALK button ,
and say the word “hello” to test the voice connection
of Intercom B. Release the TALK button after you
have finished speaking;
Step 6: Intercom A （Code A, Channel 3） if Intercom A
hears the voice of the user of Intercom B, press and hold
TALK button to reply ”hello, testing one, two, three”
to test the voice connection of Intercom A.
If you can hear audio on both ends of the intercom system using the steps above, you have successfully
set up all the units of your intercom system.
Step 2: Set up each intercom to have the same code, but different channels. For this
test, Intercom A will have code A and channel 3 while Intercom B will have code A and
channel 5. If you are testing multiple units, continue to program them to the same
code while assigning each intercom a different channel number (0-9).
Step 4: Intercom B（Code A, Channel 5）see if Intercom
B rings successfully;
2.3 Make an “Address List”
If you have a large intercom system with many intercom
units and each unit has a different channel number, you may
need an “address list” to help you remember which
intercoms belong to which users. Record the channel
number for each user, and give every user of your integrated
intercom system this “address list.” We recommend making
this list for larger intercom systems, though it may not be
necessary for networks with fewer intercoms.
Member A:
Code A Channel 3 Member B:
Code A Channel 5
Member A:
Code A Channel 3
Member B:
Code A Channel 5
Member C:
Code A Channel 6
5
TALK
TALK
TALK
CALL

Speaking
Listening Speaking
Speaking Speaking
Listening
Press & Hold to talk;
Click is invalid.
2.6 Notes
1. You will need to press and hold the TALK button when
you want to speak to another user. Simply clicking the TALK
button is an invalid entry;
2. You cannot press the TALK button on both sides of the
system at the same time. One side may press and hold the
TALK button to speak, then release the TALK button
after they have finished their message. The other side can
then answer your message by pressing and holding the TALK
button and repeating the same steps. You will not be
able to hear the other user’s voice if both sides are pressing
and holding the TALK button at the same time.
TALK
TALK
TALK
TALK
TALK
TALK
TALK

3.Advanced Settings
3.1 Volume Setting
This intercom has 8 levels of volume available. Press VOL+/VOL- to set the volume.
3.2 Code & Channel Setting
The intercom is a real-time communication system, and it requires that the two machines have the same
channel and code. If you would like to communicate between 2 intercom stations, you will need to set the
same channel and code for each of them before communication can begin.
This intercom has 3 code settings (A, B, and C) and 10 channels (0-9) available.
Set the code on the back of the intercom. Press and hold any channel number key for 3 seconds to set the
channel number to that intercom. When you want to call another intercom station, press the channel
number of the intercom you wish to communicate with, then press the CALL button . To speak to the
user of the other intercom, press and hold the TALK button as you speak. After communication has
ended, each intercom will automatically restore to their original channel number within 1 minute of
intercom inactivity.
We suggest setting all the stations to the same code to ensure efficient communication. After setting up
your intercom codes, you can simply start adjusting the channels to make calls. You do not have to set a
new code every time you call a different user.
3.3 Functions Description
This intercom has multiple functions you can enjoy:
8 levels of volume available
Digital Code(A/B/C)
TALK
CALL
Set the code on the back of the intercom.
Press and hold any channel number key for 3
seconds to set the channel number to that intercom.

3.3.1 TALK
To use the TALK feature, press and hold the TALK button , and the indicator will turn red light. Please
speak while the red indicator light is on as you press the TALK button . Once you are done talking,
release the TALK button and the indicator will turn off. Then your message will be sent and any other
intercom station with the same channel and code settings will receive your message.
3.3.2 GROUP
This function is used for calling all the intercom stations at the same time. Press&hold the
GROUP button , then you can speak to all the intercom station in this system even if they have
different channel&code.
How to confirm if the intercom station is in this system? You just need to check if the intercom’s
frequency and code in our frequency table(check the table in the 2.2 in this instruction manual).
Notes:
1.Intercom is single-way same frequency communication system. When you press the TALK button ,
you cannot receive messages.
2.Intercoms have a TOT transmission time limit of 1 minute. This means you cannot press and hold the
TALK button to speak for more than 1 minute per message.
3.When multiple intercom stations are set to the same channel and code, any message sent by any of
those units will be received by every intercom with those same channel and code settings. For example,
if 4 intercoms are set to code B on channel 4, any message sent by one intercom will be received by the
remaining 3 intercoms.
4.Intercom will restore the original channel number if the intercom has been inactive for more than 1
minute;
Press&Hold to speak, and release it
after speaking.
Indicator Light
Speaking
Listening
Listening
Member A
Press & Hold “GROUP” Member B
Member C
GROUP
TALK
TALK
TALK
TALK
TALK

“GROUP” function update: Add a switch for GROUP function
For Wuloo intercom system have sold a huge amount in USA, so some customers will get interference
from other home or pick up strange conversation when your neighbors also bought Wuloo intercom
system. When your neighbors use “GROUP” function, you can not solve this issue by change channel or
code.
So Wuloo technology department made a update version for Wuloo intercon system, we made a switch
for GROUP function, if you get a interference and can not solve it by changing channel or code, it means
you get interference by GROUP function from your neighbors, so you can turn off the GROUP function
of your intercom units, then you can solve the interference.
Turn off the “GROUP”:
How to turn on or turn off the GROUP function:
The GROUP function is turned on by default at the factory.
Press&Hold the “GROUP” button and “VOL-” button at the same time, you will hear a beep voice, it means
you have turned off the GROUP function. After you turned off the GROUP function, when you press the
GROUP button, there is a beep voice and you can not use GROUP function anymore.
Turn on the “GROUP”:
Press&Hold the “GROUP” button and “VOL+”button at the same time, you will hear a beep voice, it means
you have turned on the GROUP function. And you can use GROUP function as before.

Press MONITOR button, keep in
monitored status in 10 hours
Set the same Channel&Code as baby room,
then you can hear the baby’s voice.
In VOX mode, you can talk with others hands free, and
others can reply you by Press&Hold the TALK button.
3.3.3 MONITOR
Put the intercom in the room you wish to have monitored (for example, a baby’s room), and then press
the MONITOR button . This intercom unit will stay in transmit mode, where it will constantly send
audio to any intercom unit with same channel and code. The monitor function has a 10-hour time limit. If
you need to monitor for a longer period of time, you will need to reset it again every 10 hours.
3.3.4 VOX（Voice Operated Exchange）
Press the VOX button on the intercom station enter VOX mode. In this mode, the channel number
key of this unit will flash blue.
In VOX mode, you do not need to press and hold the TALK button to speak. Every time you want to
speak, you will need to speak closely into the intercom station to activate it. When you are speaking
closely into the intercom, the indicator light will turn red meaning it has successfully detected your voice.
Any other intercom unit with the same channel and code can receive your audio message and can press
and hold the TALK button to answer you. Besides, other station can also enter VOX mode at the
same time.
When both side enter VOX mode, both of you can speak without hold the TALK button , but please
note：1. You need to say something(like “Hello”) to activate it before you speaking words; 2. You need to
wait until other side finished speaking, then you can start to activate your intercom and speak in your
side;So it means even both side can use VOX function and speaking without hold TALK button at the
same time, but the communication have some delay, and you need to talk one by one and keep
patience.
VOX mode has a 24-hour time limit. If you need to talk with another station for a longer period of time,
you will need to reset it again every 24 hours.
To quit VOX mode, simply press VOX button again.
Speakinglistening
VOX
MONITOR
TALK
TALK
TALK

Notes：
1.VOX mode and MONITOR mode are very similar, but also have a few key differences:
3.3.5 CALL
Set the channel and code to the same settings as the intercom you want to call, then press the CALL
button . Both your intercom and other user’s intercom will ring. Other intercoms can hear the
ring, they can press and hold the TALK button to speak to you and release the TALK button
after they have finished speaking. You can then press and hold the TALK button to reply.
3.4 Usage Scenario
We set a usage scenario to help you understand it better and use it better.
Usage scenario description: there is a company, include 4 department, include general manager room,
financial department, HR department and sales department. This company bought 4 intercom stations,
and distribute them to 4 department to help them communicate better.
Firstly:set the channel and code for every intercom, and distribute them to every department, shows as
below table:
An intercom unit in MONITOR mode
should be put in the monitored room (like
a baby’s room)
Monitor mode lasts for up to 10 hours
The monitor does not need voice
activation
In MONITOR mode, monitoring side
cannot send audio messages, even if you
press and hold the TALK button.
You can only hear the voice from the
monitored room (like a baby’s room) or
change to another channel or code to
speak with others
An intercom unit in VOX mode should be
stationed on your side to help you speak
without pressing and holding the TALK button
VOX mode lasts for up to 24 hours
VOX mode needs to detect someone within a
close speaking range to activate the intercom
In VOX mode, you can speak without pressing
and holding the TALK button. The other user
can press and hold the TALK button to talk to
you.
Monitor mode VOX mode
Channel
Code
Device Location
2
A
General
Manager Room
3
A
Financial
Department
4
A
HR
Department
5
A
Sales
Department
CALL
TALK TALK
TALK

Usage Scenario 1：The general manager informs the entire staff that they’re having a meeting in the
meeting room in 10 minutes. In this case, the manager can use the GROUP function on the intercom
found in his office to notify all the intercoms at the same time.
General Manager Room
Channel 2 Code A
Financial Department
Channel 3 Code A
HR Department
Channel 4 Code A
Sales Department
Channel 5 Code A
Press & Hold the GROUP
button to talk to all the
members at the same time.
General Manager Room
Channel 2 Code A
Financial Department
Channel 3 Code A
HR Department
Channel 4 Code A
Sales Department
Channel 5 Code A
A
C Adapter
A
C Adapter

Usage Scenario 2：The general manager’s office has something important to tell the financial
department and needs to ask the financial manager to come to his office right away. In this case, the
general manager can use the CALL function to call the head of the financial department by pressing and
holding the TALK button to send the message.
Usage Scenario 3：General manager room need to talk with sales department, may be need talking
3-5minutes(it means talking will take a while but not too long). In this case, can use VOX function,
General manager room can talk with sales department without pressing the TALK button.
1.Set the Channel to 3, then press CALL button;
2.The Financial will hear the ring, then she can
Press&Hold the TALK button to speaking.
3.You can hear the voice from Financial, and
Press&Hold the TALK button to reply her.
1.Set the channel to "5", then press VOX button,
the channel key"5" will flash blue; then you can
talk to Sales hands free;
1. Set the channel to "4", as same as the HR
department's Channel number;
2. Press the MONITOR buttom to enter
monitored mode;
3.General manager can hear the audio from
Monitored side(HR department office);
2. Sales hear the voice from General Manager, then
press&hold the TALK button to reply.
Usage Scenario 4：There is a meeting in the HR departmental office, but the general manager is busy
and doesn’t have time to participate in the meeting. However, the meeting is still very important, and the
general manager wants to listen in on the meeting. In this case, the office of the HR department can set
their intercom to MONITOR mode, and the general manager can set his or her intercom channel and
code to the same one as the intercom in the HR department. The general manager can now hear audio
from the HR department meeting. Please note that in this case, the general manager can listen to the
meeting but cannot speak to the participants of the meeting.
General Manager Room
Channel 2 Code A
General Manager Room
Channel 2 Code A
General Manager Room
Channel 2 Code A
Financial Department
Channel 3 Code A
HR Department
Channel 4 Code A
Sales Department
Channel 5 Code A
TALK

Notes:
1. The intercom system is a real-time communication system which has no memory or storage function.
Therefore, you cannot receive any information while you are talking to other users.
2. Please note that you will need to set the same channel and code if you want 2 intercom stations to
receive communication. It also means that any other user can also communicate if they have same channel
code. For example, your neighbors may be able to interfere with your intercom system. We suggest setting
another channel or code to avoid interference.
4.Additional Notes
5.Troubleshooting
Possible Solution
1.Check the AC power cord to see if it is connected properly. If it is not, please
connect it now.
2.Change the AC adapter that was included in your initial set. We will send you
a new adapter for free if the current adapter broke within your warranty period.
If your warranty has expired, you can buy an adapter from our store at a
significant discount.
1. Check to make sure the intercoms have been set to the same channel and
code. The two intercoms must have the same channel and code for the users
to communicate.
2. Be sure to release the TALK button after speaking. You will not be able to
hear responses while you are holding the TALK button.
3. Check to make sure the intercom is not in monitor mode. Monitor mode can
only send audio but cannot receive it. If so, you can press the MONITOR button
again to quit monitor mode.
4. Your volume may be too low. Press the VOL+ button to increase the volume
of your intercom device.
1. Check to make sure the intercoms have been set to the same channel and
code. The two intercoms must have the same channel and code for the users
to communicate.
2. Please press and hold the TALK button to speak after the other user has
finished speaking. Release the TALK button to receive responses from the other
user.
1. Move the intercoms away from each other or other devices (e.g., speakers) to
eliminate interference from other audio devices.
2. Change your intercom to another channel or code to avoid interference from
other wireless intercom devices.
Most issues that arise can easily be resolved by changing the settings on your intercom.
Please read this user manual carefully before you use this machine. Use the table below to find your exact
issue and the possible solutions for it. If you need more help, you are welcome to contact us via our
customer service email at [e-mail] and our official Facebook page:@WulooOfficial .
Trouble
The intercom is
connected to AC
power, but the machine
does not work
The intercom cannot
receive responses
The intercom cannot
talk to other intercoms
The intercom is making
a continuous “beep”
sound

The intercom units
do not work
The intercom does
not receive any
information while it
is in Monitor mode
1. Try setting up the units in different locations. If the units work in a different
location but not in your home, the issue may be with the walls of your home or
office.
1. Monitor can only support 1 monitor unit (receiving audio) per 1 monitored
unit (sending audio). Or, multi-monitor (many units receiving audio) to 1
monitored unit (one unit sending audio). One monitor unit cannot receive audio
for several monitored units that are all sending audio to it at the same time.
2. The monitor function can work for up to 10 hours at a time. Please reset
monitor mode if you wish to monitor for a longer period of time.
3. The intercom station in monitor mode is the “monitored” side. Please place
the intercom close to the person you wish to monitor, for example, a baby.
4. The monitored side (the side with the intercom on monitor mode) can only
send audio but cannot receive it.
This intercom system supports expansion to more intercom stations, providing you with even
more convenience.
6.1 Expand to more intercom stations
If you find that you do not have enough intercom stations, and you wish to expand to include more
devices, you can purchase additional intercom units in our store. Please select the same model number
when purchasing additional units. Once your additional intercoms arrive, set them to the same channel and
code as your existing system to communicate with the intercom devices you’ve already installed.
6.Adding Additional Units
Below are some common problems encountered by our customers as well as the detailed answers you
can use for your reference. We hope this information can help you use your device more efficiently.
Question 1: Why does my intercom sometimes receive noise?
Answer 1: This is likely due to the fact that the intercom uses FM wireless technology. It uses public
frequency, so if someone close to you is using wireless intercom devices at the same frequency, you
may experience interference. To solve this problem, you just need to change the intercom settings to a
different channel or code.
Question 2: This intercom uses FM wireless communication. Do I need to have a license?
Answer 2: T his intercom system uses public frequency, so there is no need for a license.
7.Questions & Answers

Question 3: Can I talk to the other user without pressing the TALK key?
Answer 3: No, you cannot. You must hold the TALK button the entire time you are speaking as usual. That is
the working principle of the intercoms. All similar machines operate in a similar manner. However, you can use
VOX function to talk without hold the TALK button. To learn more about the VOX function, please read part
3.3.4 of this manual.
Question 4: If I use a public frequency, will I encounter interference?
Answer 4: Interference is rare, however, it can happen. When others use the same frequency, you may
experience interference, you can avoid this by simply changing your channel or code.
Question 5: Can I use batteries for these machines?
Answer 5: No, this intercom does not work with batteries. Alternatively, you can use the power bank (DC
5V1A ) instead. This works well when you want to use the power bank and take the intercom outdoors.
Question 6: What voltage do the intercoms work with?
Answer 6: This intercom package comes complete with an adapter that supports 100-240V AC power. The
original adapter is useful worldwide.
If you have more concerns, please feel free to contact us via our customer service email at
[e-mail]. We will do our best to answer you within 12 business hours. You can also visit our
official Facebook page and @WulooOfficial. We will reply to you immediately if our admin is online, or usually
within 6 hours if the admin is not immediately available. Thank you very much for choosing Wuloo！
We believe in honesty and reliability for all our products. That’s why all of our products must pass a strict test
before they are packaged for shipping. We are dedicated to providing our customers with 100% satisfactory
service and so, we are proud to provide a warranty service for this product:
1. We provide free replacements instead of repairs for quality-related issues detected within 1 year.
2. We provide a whopping 50% discount for new replacement purchases made within 2 years if the intercom
has suffered accidental damage (e.g., drop and break).
3. We also provide lifetime service for all questions regarding your intercom.
If you have any additional questions, you are welcome to contact us via email or Facebook:
Email: [e-mail]
Facebook Page: @WulooOfficial
Page link: https://www.facebook.com/WulooOfficial/
For additional coupons and deals on products, follow us on our Facebook page. We send out coupons and
promotions regularly to help our previous customers save the most on their future purchases! Thank you so
much for choosing Wuloo!
8.Warranty