How to Guide
 Note
•  This baby monitor is intended as an aid. It is not a substitute for proper adult supervision, and should not be used as such.
Test your baby monitor
You may test the baby monitor before initial use, and at regular times thereafter. 
 Caution
•  For hearing protection, make sure the parent unit is 
more than 3 feet (1 meter) away from both baby units. If 
you hear any high-pitched noise, move the parent unit 
further until the noise stops. You can also press VOL  on 
the parent unit to reduce the noise.
1. Make sure your baby unit and parent unit are on.
2. The parent unit displays images from the baby unit. 
•  Speak towards the microphone of the baby unit. You will hear the sound at the parent unit.
3. If you have two baby units, view the image from one of them by switching cameras via 
menu. Then, repeat step 2.
 Note
•  When the parent unit displays   No link to Camera, and the POWER LED light flashes, move the parent 
unit closer to the baby units (observe the minimum distance of 3 feet / 1 meter). You can also check if 
the baby unit is connected to a live power socket and switched on.
 Tip
•  Increase the speaker volume of the parent unit if you cannot hear the sounds transmitted from the baby units.
Positioning the baby monitor
 Caution
•  Keep the baby unit out of the reach of your baby. Never place or mount the baby unit inside the baby’s crib or playpen.
 Note
•  To avoid interference from other electronic devices, place 
your baby monitor far away from devices such as wireless 
routers, microwaves, cell phones and computers.
1. Place the baby units more than 3 feet (1 meter) 
away from your baby.
2. Adjust the angle of the baby unit camera to aim at 
your baby. 
3. Place the parent unit more than 3 feet (1 meter) 
away from the baby units.
 Caution
•  The default volume of your parent unit is level 3, and the 
maximum volume is level 5. If you experience high-pitched 
screeching noise from your baby monitor while positioning:
 - Make sure your baby units and parent unit are more than  
3 feet (1 meter) apart, OR
 - Turn down the volume of your parent unit.
Operating range
The operating range of the baby monitor is up to 1000 feet (300 meters) outdoors or 160 feet 
(50 meters) indoors. The actual operating range may vary depending on the environmental 
conditions and other interferences such as walls, doors and other obstructions.
Power on or off the baby unit
•  Slide the ON/OFF switch to ON to turn on the baby unit. The POWER LED light turns on.
•  Slide the ON/OFF switch to OFF to turn off the baby unit. The POWER LED light turns off.
Power on or off the parent unit
•  Slide the ON/OFF switch to ON to turn on the parent unit. The screen and the POWER LED 
light turns on.
•  Slide the ON/OFF switch to OFF to turn off the parent unit. The screen and the POWER 
LED light turns off.
Adjust parent unit speaker volume
•  Press VOL /VOL  on the parent unit to adjust the speaker volume.
Adjust LCD brightness
You can change the brightness of the parent unit screen from Level 1 to Level 5. The LCD 
brightness is preset to Level 3.
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press  .
3.  Press   or   to choose the desired level of brightness, then press   to confirm your selection.
Monitoring mode 
*
 for VM2251-2 only
Every time the parent unit is turned on, it displays a baby unit in SINGLE-CAM mode. If there 
are more two baby units in your system, you can also monitor your baby in PATROL mode.
SINGLE-CAM The screen displays image of a single baby unit in full screen.
PATROL  A single cam view that transitions to a different baby unit every 10 seconds.
To switch from SINGLE-CAM to PATROL mode:
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press   or   to open the submenu.
3. Press   or   to select   to enter PATROL mode to alternately view the image from one 
baby unit to the next one in every 10 seconds.
To switch from PATROL to SINGLE-CAM mode:
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press   or   to open the submenu.
3. Press   or   to select a camera number to enter SINGLE-CAM mode.
 Note
•  If one or more paired baby units are powered off or disconnected during patrolling, the parent unit 
will keep searching until its power has run out or a baby unit is connected once again.
1 Pair hole
•  Your baby units and parent unit 
provided are already paired.
2 POWER LED light
•  On when the baby unit is turned on 
and is paired to the parent unit.
•  Flashes when the baby unit is not 
being viewed; 
or when the link to the parent unit is 
lost.
3 Microphone
4 Camera
5 Infrared LEDs
6 Light sensor 
7
   ON/OFF switch
•  Slide to turn on or off the baby unit.
8 Speaker
9 Power jack
10 Wall mount holes
NOTESNOTE
•  The rechargeable battery is pre-installed in your parent unit.
•  Use only the power adapters supplied with this product.
•  Make sure the baby monitor is not connected to the switch controlled electric outlet.
•  Connect the power adapters in a vertical or floor mount position only. The adapters’ prongs are not 
designed to hold the weight of baby monitor, so do not connect them to any ceiling, under-the-table, 
or cabinet outlets. Otherwise, the adapters may not properly connect to the outlets.
•  Make sure the parent unit, the baby unit and the power adapt\er cords are out of reach of children.
Connect the baby monitor
Charge the parent unit battery
When you have connected and turned on the parent unit, the battery will be charged 
automatically. The battery icon indicates the battery status (see the following table).
NOTESNOTE
Notes
•  The parent unit battery is fully charged after 11 hours of continuous charging.
•  It takes longer to charge the battery when the parent unit is turned on. To shorten the charging time, 
turn the parent unit off while charging.
•  The standby time varies depending on the volume level you set and your actual use.
Battery indicators Battery status Action
The screen displays Battery 
low at Parent Unit. The   
or   light flashes.
The battery has very little 
charge and may be used 
for only a short time.
Charge 
without interruption
(about 30 minutes).
The battery icon becomes 
solid  .
The battery is fully 
charged.
To keep the battery charged, 
connect it to AC power when 
not in use.
User’s manual
VM2251
VM2251-2
Video Monitor
Go to www.vtechphones.com 
to register your product for 
enhanced warranty support and 
the latest VTech product news.
Congratulations
on purchasing your new VTech product. Before using this product, please read Important safety 
instructions. 
This manual has all the feature operations and troubleshooting necessary to install and operate 
your new VTech product. Please review this manual thoroughly to ensure proper installation and 
operation of this innovative and feature-rich VTech product.
For support, shopping, and everything new at VTech, visit our website at www.vtechphones.com.
1 set for VM2251
2 sets for VM2251-2
Screen off timer
You can set the screen off time for the parent unit when there is no key press for a specific time interval.
When the screen is turned off, you can still hear sound from the baby unit.
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press   or   to open the submenu.
3. Press   or   to choose the desired time period to automatically turn off screen 
(  /   - 5 min./   - 30 min. /   - 60min.), then press   to confirm your selection.
Adjust the sound sensitivity of the baby unit
You can choose to hear sounds from the baby unit all the time, or to hear sounds that exceed 
a certain level. You can use the parent unit to adjust the microphone sensitivity of your baby 
unit. The higher the sensitivity level, the more sensitive the baby unit is in detecting sounds for 
transmitting to the parent unit. The VOX sensitivity level is preset to the highest level (Level 5).
VOX 
Sensitivity 
level
 Level 5  Level 4  Level 3  Level 2  Level 1
Sensitivity
Highest VOX 
sensitivity level
High VOX 
sensitivity level
Medium VOX 
sensitivity level
Low VOX 
sensitivity level
Lowest VOX 
sensitivity level
Description
The parent 
unit speaker is 
constantly on, 
and you will 
hear all sounds 
(including 
background 
noises) from 
your baby’s 
room.
The parent 
unit speaker 
turns on for 
soft babbling 
and louder 
sounds from 
your baby. It 
remains quiet 
when your 
baby sleeps 
soundly.
The parent 
unit speaker 
turns on for 
loud babbling 
and louder 
sounds from 
your baby. It 
remains quiet 
when your 
baby makes 
soft sounds.
The parent unit 
speaker turns 
on for crying 
and louder 
sounds from 
your baby. It 
remains quiet 
when your 
baby makes 
soft sounds.
The parent 
unit speaker 
turns on for 
loud crying 
or screeching 
sounds from 
your baby. It 
remains quiet 
when your 
baby makes 
soft sounds.
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press   or   to open the submenu.
3. Press   or   to choose the desired sensitivity level, then press   to confirm your selection. 
NOTESNOTE
Note
•  If the screen is off, and the setting of sound-activated screen is ON, then LCD screen will be turned on 
automatically when VOX sensitivity is triggered.
 Tip
•  If you want to use a sound machine or white noise machine for natural white noise while using this baby 
monitor to check on your baby, you can:  
- Lower the volume of your sound machine or white noise machine; or  
- Lower the sensitivity level of your baby monitor to medium (level 3) or below. Default level is the highest level.
Turn on or off the sound activation
When sound activation is on, as long as no sound is detected within 50 seconds, the parent unit 
screen will turn off automatically to save power.
When your baby unit detects a sound, which exceeds the selected sensitivity level, the sound 
activation triggers the parent unit screen to turn on automatically. When no sound is detected 
within 50 seconds, the screen will be off again. 
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press   or   to open the submenu.
3. Press   or   to choose   or  , then press   to confirm your selection.
 Note
•  If the sound sensitivity is set to the highest level, the parent unit screen may remain on continuously 
even though sound activation is on. This depends on whether the baby unit detects any sounds.
Zoom
You can zoom in while viewing images from the baby unit.
•  Press   to zoom in. Press again to zoom out.
•  Press  ,  ,   or   to move the zoomed image downward, upward, leftward or rightward.
Talk
You can use the TALK function of the parent unit to comfort your baby. 
Press and hold TALK on the parent unit. 
1. Speak towards the microphone on the parent unit. Your voice is broadcast to the baby unit. 
2. Release the TALK key to stop the broadcast. 
Monitor the temperature
Your baby unit monitors the temperature of your baby’s room with its built-in temperature 
sensor. If the detected temperature is out of the preset temperature range, the parent unit 
will display an alert message.
Set temperature range
You can set the desired minimum and maximum room temperature alert ranges.
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press  .
3. Press   or   to choose  , then press  .
4. Press   or   to choose   or    , then press  .
5. Press   or   to choose the desired minimum or maximum temperature, then press   to 
confirm your selection.
Temperature alert tone
You can turn on the temperature alert tone so that the parent unit will emit an alert tone if the 
detected temperature is out of range.
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press  .
3. Press   or   to choose  , then press  .
4. Press   or   to choose   or  , then press   to confirm your selection.
Temperature format
You can choose to display the temperature in Fahrenheit (
o
F) or Celsius (
o
C).
1. Press   when the parent unit is idle.
2. Press   or   to choose  , then press  .
3. Press   or   to choose  , then press  .
4. Press   or   to choose   or  , then press   to confirm your selection.
1
 Connect and charge the battery 
 What’s in the box
2
 Before use
3
 Using the baby monitor
 Baby unit overview 
3
 Using the baby monitor (Con’t)
Frequency control Crystal controlled PLL synthesizer
Transmit frequency Baby unit: 2407.5 - 2475 MHz
Parent unit: 2407.5 - 2475 MHz
Channels 21
LCD 2.4” Color LCD 
(QVGA 320x240 pixel)
Nominal effective range Maximum power allowed by FCC and IC. Actual operating range 
may vary according to environmental conditions at the time of use.
Power requirements Parent unit: 3.6V Ni-MH battery
Baby unit power adapter: Output: 6V DC @ 400mA
Parent unit power adapter: Output: 6V DC @ 400mA
Technical specifications
Specifications are subject to change without notice.
© 2018 VTech Communications, Inc.
All rights reserved. 11/18. VM2251-X_CIB_V4 
Document order number: 91-010824-050-100
> 
3 ft (1m)
 Parent unit overview
1  POWER LED light
•  Green when the parent is powered 
on.
•  Flashes green when no link to 
camera.
2 TALK
•  Press and hold to talk to the selected 
baby unit. 
2
3
4
7
8
9
5
6
1
10
13
12
11
2
3
4
7
8
9
5
6
1
10
13
12
11
10
1
3
4
5
6
2
7
8
9
> 3ft (1m)
<3ft (1m)
>3ft (1m)
1
2
3
>
 3ft (1m)
﹏﹏﹏
﹏﹏﹏
﹏﹏﹏﹏
﹏﹏﹏﹏
﹏﹏﹏﹏
﹏﹏﹏﹏﹏
﹏﹏﹏﹏﹏
﹏﹏﹏﹏﹏
﹏﹏﹏
﹏﹏﹏
﹏﹏﹏﹏
﹏﹏﹏﹏
﹏﹏﹏﹏
﹏﹏﹏﹏﹏
﹏﹏﹏﹏﹏
﹏﹏﹏﹏﹏
<
 3ft (1m)
6
3ē
≥
<
 3ft (1m)
 3ft (1m)
63ē
63ē
≥
<
 3ft (1m)
 3ft (1m)
63ē
63ē
>
<
 3ft (1m)
 3ft (1m)
<3ft (1m)
>3ft (1m)


