User's Manual
SENSITIVITY
FREQUENCY RESPONSE TO
HUMAN VOICE
A2 Loudspeaker Microphone
with Digital Screen
Introduction to Functions
Microphone Vol+/ Vol-
Mute
Audio output/headphone port
USB charging/recording port
Electronic music, baby sound,
monster sound
Duets Feature
Echo+ / Echo-
Digital display screen
4 major karaoke scenarios
Descriptions of Digital Display
Product Accessories Basic parameters
Key functions
POP - Scenario
Songs sound lively and resonant;
Improve details of human voice
and actively increase acoustic fidelity
to restore real audio effects while
bringing people better auditory
feelings
Pro-mode
Bright and transparent tone, more
clearly vocal, filtered out noises,
greatly enhanced authentic sound
effect.
Ballad - Scenario
An auto-regulation function is available
to professional enthusiasts of ballad,
accompaniment and human voice.
The low, medium and high-pitch sound
is more resonant. Producing vigorous
and natural sound, this product performs
better in karaoke singing under this mode.
KTV - Scenario
With a function for making sound
reverberant and vigorous, the KTV
produces surround and stereo sound.
The songs sound stereo, surrounding
the ears. The best audio-visual effects
are automatically matched for the songs.
Three major sound modes
Electronic music Baby sound Monster sound
Arrow Keys (The arrow keys correspond to 4 major karaoke scenarios,
which are available by pressing one key)
Power Indicator – full battery: blue; medium battery: (purple); low battery:
red twinkling light. The lower the voltage, the faster the red light twinkles
until the microphone is powered off.
Charge Indicator – The battery icon will flicker at the time of charging.
Model Indicator: To choose the mode to be highlighted.
Restore Factory Settings: Long pressing on the Pair and Mute keys restore
factory settings. After all lights flicker once, the parameters will be restored
to the default values. Then, the Bluetooth will be disconnected.
Bluetooth Indicator: The light will be kept on after connection with a
cellphone. It will be off in case of Bluetooth connection.
Mute Indicator: The light will be on when the speaker is mute. The light will
be off when the mute mode is turned off.
Echo +/- : The displayed value will change when the volume is regulated
up and down. The minimum value is 0, and the maximum value is 9.
VOL +/- : The displayed value will change when the volume is regulated
up and down. The minimum value is 0, and the maximum value is 9.
VOL +/- (This key controls volume of human voice)
Mute (By short pressing on this key, the speaker will be powered on/off.)
Long pressing on the Duet and Mute keys will restore the factory settings.
All lights will twinkle once. Then, all parameters will be restored to the
default values. The Bluetooth will be disconnected.
M (The sound will be switched by pressing this key for a short while: By
short pressing on this key in succession, baby sound, monster sound and
electronic music will be available respectively. By short pressing again,
the microphone will exit from the mode of sound switching.)
Duet (Keep pressing this key to enable the duets function. It can be
connected to the nearby MEINIAO A2 loudspeaker microphone for
chorusing with double microphones)
Echo +/-(This key controls volume of the reverberant sound. The amplitude
of pitch change is adjusted under the mode of sound switching)
Certificate of
Conformity
Certificate of Conformity
A2 Loudspeaker
Microphone
Charmbird, with reliable quality · creates melodic music
Before using this product, please read this
user manual carefully.
Manual
Charging cable Recording cable
A2 Loudspeaker Microphone
Product and Accessory Descriptions
Name
Microphone speaker
Certificate of conformity
Recording cable
Quantity
Name
Quantity
Manual
Charging cable
PRODUCT NAME
Microphone Speaker
BLUETOOTH NAME
MEINIAO A2 loudspeaker microphone
with digital display
PRODUCT MODEL
PRODUCT SPEC
BATTERY CAPACITY
WORKING VOLTAGE
CHARGING VOLTAGE
OUTPUT POWER
2*5W maximum power 2*8W
A2
10.3*3.5*2.7in
2600mAH
3.7V
DC_5V
DIRECTIONAL
CHARACTERISTIC
Supercardioid
AUDIO MONITOR
Dynamic core
FREQUENCY RESPONSE
TO MUSIC
MAXIMUM SOUND
PRESSURE LEVEL
SNR
-52dB (0dB=1V/pa at 1KHz)
50HZ-13.5KHZ
20HZ-20KHZ
125dB(at 1kHz 0dB THD<1%)
>83dB
SMART CHIP
dsp chip for efficient digital processing
BLUETOOTH DEVICE
RISC dual-mode Bluetooth V5.0
KARAOKE MODE
POP, Ballad, KTV, professional
SOUND SWITCHING
MODE
Electronic music, baby sound, monster sound
AUDIO INTERFACE
POWER INTERFACE
3.5mm
Micro USB
Common Failures and Solutions
Failures Causes
Solutions
The microphone
cannot be
powered on
The battery is too low.
Charge
No human voice
The microphone has entered
the listening mode.
Exit from the listening mode.
The Bluetooth
cannot be
connected.
The microphone has
been connected to
another cellphone.
Disconnect the microphone from
the cellphone or restore factory
settings of the microphone.
Disconnect
the Bluetooth.
The cellphone is too far away
from the microphone, and
there are too many records
on Bluetooth connection.
Delete the records on
Bluetooth connection, and
put the cellphone near the
microphone.
The accompaniment
is in low volume
or mute.
The cellphone volume
hasn’t been regulated
or the volume
of source document is low.
Regulate cellphone volume
and download a high-volume
version for singing.
Charging is slow
Output current of the
charger is below 1A
Replace the charger to ensure
normal charging of the
microphone.
Note
Don’t put the microphone in fire to avoid explosion.
Don’t place the microphone together with conductors
to prevent potential short circuits in batteries or fire!
Duet Mute
Echo + VOL +
VOL
ON·OFF/Listen
M
Pro
POP
KTV
Ballad
Pro
POP
KTV
Ballad
Pro
POP
KTV
Ballad
Pro
POP
KTV
Ballad
Pro
POP
KTV
Ballad
Duet Mute
Echo + VOL +
VOL
ON·OFF/Listen
M
Pro
POP
Ballad
Duet Mute
Echo + VOL +
VOL
ON·OFF/Listen
M
Pro
POP
Ballad
TM
TM
TM
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•Consult the dealer or an experienced radio/TV technician for help.
Caution: Any changes or modifications to this device not explicitly approved by manufacturer
could void your authority to operate this equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
RF Exposure Information
The device has been evaluated to meet general RF exposure requirement. The device can be
used in portable exposure condition without restriction.