CALF SPEAKER
MICROPHONE C12
User Manual
CALF Speaker Microphone C12
Product Overview
Accessories Introduction
Charging cable X 1
Audio cable X 1
1
2
Button Introduction
3
4
Button Description
5
Bluetooth Instructions
7
Bluetooth Instructions
6
Technical Parameters
8
Listening Mode
9
Connect it to power bank, computer USB port or
power adapter to charge the product.
Some devices common to Android and Apple
systems need it to be used with an adapter cable.
USB charging cable
Audio Line
1. Work indicator
2. Speaker volume control button
3. Microphone volume control button
4. Original sound cancel button
5. Power button / sound effect control button
6. Bluetooth reset button
7. 3.5mm earphone cable port
8. USB cable port
9. Audio cable port
1. Bluetooth mode:
Press and hold the power button for 2 seconds to
enable the power supply, and the white indicator
will be on. When the audio cable port is not
connected, Bluetooth mode is a default for CALF
speaker microphone.
2. The first connection, After hearing the prompt tone
indicating CALF speaker microphone has been turned
on, open the Bluetooth of your phone and search for
the equipment. Then, click “CALF speaker
microphone C12” for connection. When it is
successfully connected, the equipment will give
a corresponding prompt tone that says “Bluetooth
connected“
3. Indicator description:
When the Bluetooth is not connected, the white
indicator will keep blinking for 1 minute, and it will
then be always on. When the Bluetooth is connected,
the white indicator will keep being on after the
prompt tone is given.
[Product Model]
[Bluetooth version]
[Reverb Mode]
[Digital equalization]
[Recording Mode]
[Radio Frequency Shielding]
[Outer diameter of the capsule]
[Sound head type]
[Sensitivity]
[Frequency response]
[Directionality]
[Speaker power]
[Battery capacity]
[Charging power supply]
[Weight]
XiaoChang C12
Bluetooth 5.2
Reverb
EQ adjustment
Listening Wet, Recording Dry
Anti-cell phone / SMS
interference
9.7mm
Condenser sound head
-37±3dB
20Hz
～
20kHz
Supercardioid
1X5W
1500mAh
DC 5V 1A
305g
1. Press and hold the power button for 2 seconds,
the white indicator light will be on, indicating the
microphone is successfully turned on;
2. Turn the microphone volume to the lowest to disable
the microphone pickup function;
3. Connect your phone through Bluetooth;
4. Turn on Changba or other music player APP, then
adjust the phone or speaker to a proper volume;
5. Play the music and enjoy using it.
Special instruction:
To prevent secondary playback of the amplified music
to be picked up by the microphone which impairs sound
quality, the microphone pickup function may be directly
turned off by pressing and holding the volume button
for 2 seconds.
1. Work indicator
The white indicator light turns on (off) as the power is
turned on (off); the red indicator light turns on when
the microphone is charging.
2. Speaker volume control button
It includes volume plus and volume minus buttons,
which controls speaker volume across eight grades.
3. Microphone volume control button
It includes volume plus and volume minus buttons,
which can adjust the microphone’s pickup volume
across eight grades。
4. Cancel the original sound button
Press the button for a short time to turn on/off the
original sound function.
5. Power button/ sound effect control button
Press and hold the button for 2 seconds to turn on,
press and hold it for 3 seconds to turn off; in power-
on state, click thebutton, the microphone goes
into the next grade in the sequence of: original
mode → super reverb mode → singer mode → pop
music mode → folk or military music mode → host
mode → anime mode → monster mode → electronic
mode → original mode. and the factory default is the
singer effect.
6. Bluetooth reset button
Press and hold the button for 3 seconds to reset
Bluetooth of the product.5
Button Introduction
Wireless Hi-Sing Mode
10
Wireless Duet Mode
1. Press and hold the power button for 2 seconds until
the light on to turn on the device;
2. Turn on the Bluetooth of the mobile phone, search for
“CALF speaker microphone C12” and click it to
connect to the Bluetooth;
3. Adjust the power button / sound effect control button
to select the appropriate sound effect;
4. Open Changba or other music player APP, adjust the
microphone to a proper volume, play the music and
enjoy it.
11
1. Switch on the power of two CALF microphones;
2. Press and hold the Bluetooth reset button to
disconnect the microphones and other equipment;
