Comica CVM-WM300 User Manual
CVM-WM300
UHF Wireless Microphone
USER MANUAL
Foreword
Thanks for purchasing COMICA WM300 UHF wireless microphone.
WM300 is an all-metal wireless microphone with dual-transmitter triggered by one
receiver, with built-in polymer lithium battery, it utilizes UHF wireless FM
technology and LCD high-resolution lattice screen,16-level adjustable volume,
and integrated into LCF（Low cut filter) , Auto-scanning, Auto IR Channel-match,
stereo / mono switchable audio mode, RF signal strength adjustment, MIC/LINE
IN input dual selection, power monitoring at receiver end, sound pickup dynamic
display, backlight adjustment and other functions, at the same time with strong
shielding anti-noise performance, it’s a high-quality microphone to broadcasting
level;
To ensure the smooth use and safety of the product, please carefully read this
instruction before using and properly assemble and operate.
Main Features
. Dual Transmitters Triggered by One Receiver, A/B Double Group Options;
. Used for Multiple Devices Working Together;
. Working Distance is Up to 120m (120m in Open Area, 80m in Barrier Area);
. LCF Low Cut Filtering Mode;
. Auto-scanning for Quick Channel Selection;
. Manual or Auto IR Sync;
. Optional Language;
. Adjustable RF Signal Strength;
. Audio Dynamic Display Bar;
. 16 Levels Volume Adjustment;
. Transmitter Power Monitor;
. Mono/Stereo Switchable Output Modes;
. Built-in Rechargeable Lithium Battery, Slim Body;
. Low-consumption, Super-long Standby Time;
. Lattice LCD Display, High Resolution;
. Full Metal Manufacturing, Excellent Shielding;
1
Notice
Transmitter should be more than 20cm from Receiver, when the distance is less
than 20cm, Receiver’s wireless signal receiving part will take protect action to shut
down the receiving of wireless signal, then audio may be intermittent, which is
normal;
When using auto IR sync, please stay within one meter, otherwise the signal may
be too weak and the sync will not be successful;
In the case of stereo/mono mode switch, please preset the mode before using to
avoid the transient interference caused by switching during usage;
The antenna will affect the working distance. Please protect the antenna and avoid
any man-made damage;
The working distance will be affected by the surrounding environment. Please try
to keep the environment open without interference during usage, and close the
WIFI of the device itself;
When using this product in a short distance, it is recommended to set RF strength
at ‘LOW’ to reduce the power consumption;
For smart phone shooting, customers must separately purchase a TRS-TRRS
audio converting cable,and pay attention to set the mobile phone mode to 'Flight
Mode' to avoid incoming call interference;
(It does not support the original recording system of some android systems, the
third-party APP is recommended to be used in this case);
Please keep this product in dry environment;
Do not expose the device in rain or humid environment, otherwise there will be a
danger of short circuit;
Package Contents
Main Parts
：
2
Lavalier Transmitter (TX) Hand-held Transmitter (HTX) Receiver (RX)
Multiple Selections:
WM300(A) = 2TX + RX
WM300(B) = TX + HTX + RX
WM300(C) = TX + RX
WM300(D) = HTX + RX
++
TX TX RX
++
TX HTX
+
TX RX
+
HTX
RX
RX
3
Accessories:
3.5mm Mic Audio Input Cable
1
3.5mm-3.5mm Audio Output Cable
2
3.5mm-XLR Audio Output Cable
3
Micro USB Charging Cable
4
Belt Clip
5
6
Hot-shoe Mount
7
Wind Muff
8
Portable Box
9
User Manual
10
Warranty Card
1
5
9
2
6
10
The accessories of each combination include
1
2
2 3 4
2 3 4
4
3
5
WM300(A)
WM300(B)
WM300(C)
WM300(D)
= x2 + + + x2 + x3 + + x2 + + +
1
= + + + + x2 + + + + +
1
= + + + + x2 + + + + +
2 3
= + + + + + + +
4
4
5
5
6
5
6
6
8 9 10
3
7
：
7
6
7 8 9 10
7 8 9 10
4
8
9
10
8
Components and Instruction
Components
Lavalier Transmitter (TX)
1
Antenna
2
Matching Status Indicator Light
3
Sound Status Indicator Light
4
LCD Screen
5
Power / Muting Button
6
SET Function Button
7
IR Sensor
8
MIC / LINE IN External Input
9
Function Selection Button +
10
Function Selection Button -
11
Belt Clip
12
1/4 Mounting Hole
13
Charging Indicator
14
Micro USB Charging Socket
15
Reset Hole
1
2
3
4
5
6
11
12
The function of reset hole: when
function program of the product is
disorganized and unable to make
normal adjustment or even
13
shutdown, you can use an
14
15
appropriate taper tool to insert the
reset hole to realize the function
reset.
7
8
9
10
5
Hand-held Transmitter (HTX)
LCF-RF
High
Low
1
Microphone
2
LCD Display
3
Power / Muting Button
4
IR Screen
5
Low cut/Normal Audio Switch
6
Signal Strength “High/Low” Switch
LCF
RF
1
2
3
4
65
6
Receiver (RX)
1
Group A Antenna
2
Group B Working Status Indicator Light
3
Group A Working Status Indicator Light
4
LCD Screen
5
Power Switch
6
SET Function Button
7
3.5mm Audio Output Socket
8
IR Sensor
9
3.5mm Monitoring Socket
10
Group B Antenna
11
Function Selection Button +
12
Function Selection Button -
13
Belt Clip
14
Charging Indicator
15
Micro USB Charging Socket
16
Reset Hole
1
10
2
3
4
5
6
9
8
7
13
14
15
16
11
12
7
Function Button Instruction
Lavalier
Transmitter
/ Receiver
Power / Muting Button
SET Function Menu
+ Button
Long Press
Power On / Off
Muting Mode（This function is only
Short Press
for transmitter, when the mute
function is turned on and the
screen is lighted up
）
Long Press Enter the function adjustment menu
Short Press
Short Press
1.Confirm the selected function
2.Exit the function adjustment menu
Function Adjustment (+)
Hand-held
Transmitter
- Button
Power / Muting Button
“Low cut/ Normal”
Sound Switch
Signal Strength
“High/Low”
Switch
Short Press
Long Press
Short Press
Push-up
Push-down
-
LCF
Push-up
High
Push-down
Low
RF
Function Adjustment (-)
Power On / Off
Muting Mode（Only goes into
effect when the screen lights up
Low cut
Normal
Signal strength--high
Signal strength--low
Signal strength high / low switching effect:
With high signal strength, the wireless working distance is up to 80-120M, high
power consumption, battery life is short; With low signal strength, the wireless
working distance is up to 30-60M, low power consumption, the battery can be
8
used for a long time.
）
Low cut function:
Appropriately remove the low frequency part of the sound, reduce the ambient
noise of the low frequency part, to make sound more clean and clear.
Indicator Light Instruction
Normal Recording Status
This state is only for the
（
transmitter, when the
channel matches
successfully, the receiver
can pick up the sound
Muting Mode
Low-power reminder
Channel matches
No matter the channel
（
matches or not
Channel in the match...
only for IR Sync
（
Normal working status after
the channel matches
Channel doesn’t match
Channel in the match...
only for IR Sync
（
Low-power reminder
Channel closed
）
Transmitter
Receiver
AUDIO
IR
A IR/RF
B IR/RF
Green Light Keeps On
Red Light Keeps On
Red Light Flicker
Green Light Keeps On
Red Light Flicker
Green Light Keeps On
Green Light Flicker
Red Light Flicker
Red light keeps on
）
）
）
A IR/RF： Group A Working Status Indicator
B IR/RF： Group B Working Status Indicator
9
Installation and Usage
Lavalier Transmitter
1. Insert the 3.5mm audio input line into MIC socket
2. Long press the power button to turn on the transmitter
3. After the channel matching with the receiver, it can be used
10
Please refer to screen operation instruction for channel matching.
3. Connect the MIC to the audio source and check the working status
according to the volume indicator on the screen
A
H
Group A
C H11
523.300MHz
A
Audio Dynamic Display Bar
4. Connect the belt clip to the connection hole
5. After the channel matching with the receiver, it can be used
Please refer to screen operation instruction for channel matching.
11
Hand-held Transmitter
1. Install two AA batteries into the battery tray
according to the positive and negative electrode
AA
AA
2.Long press the button switch to turn on
the hand-held transmitter
3. After the channel matching with the receiver, it can be used
12
Please refer to screen operation instruction for channel matching.
Receiver
1. Connect the receiver to the video device through the hot-shoe
13
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