ShenZhen Aoni Electronic Industry A7B021 Bluetooth Headset User Manual
ShenZhen Aoni Electronic Industry Co., Ltd. Bluetooth Headset
User Manual
User’s Manual
Model No: B021
Wireless Headphone With
Microphone
Important safety instruction
If used in the correct method, this design and production of this product can ensure your personal safety completely.
However, any inappropriate use may lead to potential risk and danger of electric shock or fire hazard. Please read all
the safety instructions before installing and using the product. In particular, attention shall be given to the following
information:
1. It needs to be stored or used in the ambient temperature.
2. It shall not be placed in water or wet locations.
3. It can’t be disposed randomly for it may cause environmental pollution.
4. Without approval, It shall not be disassembled or repaired.
5. The built-in lithium battery can’t be disposed in the fire or other places to prevent causing fire hazards.
6. It shall be cleaned with dry cloth.
7. Whenever there is damage, it needs to be repaired by professional personnel.
Charging the battery
Fully charge the battery for about 2 hours before using the battery for the first time.
1. Plug the smaller end of USB charging cable into the Micro-USB interface of the connector.
2. Next, plug the other end of USB charging cable into other power charging devices or a computer with the power
on.
Status
LED indicator
Low battery
Red light time of 200 ms/ turn off time for 300 ms, and five times as a
cycle, repetitive flashing, until power off.
Charging
The red light solid on.
Fully charged
The red indicator will go out .
Package content
1. Wireless headphone
2. Micro USB charging cable
3. 3.5mm audio cable
4. User manual
Earphone indicator
Product feature
Pairing name
B021
Li-battery capability
400 mAh
Talking time
25hours
Playing time
25hours
Standby time
3months
Charging time
2 hours
Charger mode
Micro USB 5V/1A
RF Transmit Power
6 dBm
Frepuency Range
2402-2480MHz
Straight-line distance
A single earphone bluetooth distance will be more than 10
meters indoor , outdoor more than 7 meters. If you use share
me mode, the distance is more than 5 meters indoor and
outdoor.
It is necessary to enter the passcode if
bluetooth connection version 2.0 below
0000
B021 bluetooth earphone instructions
Function
Key operation
LED status
Power on
Long press button" "about 3
seconds
The first device pairing: red and blue
LED slow flash alternately
standby (Reconnection): blue LED
light flash once per 1s
Power off
Long press button" "about 4
seconds
Red LED light go out after 2s
Pairing
Long press button" "about 5
seconds
Red and blue LED slow flash
alternately
Connection
N/A
The blue light flashes twice for 5
seconds
Disconnected state
N/A
Blue light quick flash interval 200ms
Play
Short press button" "
The blue light flashes twice for 5
seconds
Pause
Short press button" "
The blue light flashes twice for 5
seconds
Volume up
Short press button" "(15
Level )
The blue light flashes twice for 5
seconds
Volume down
Short press button" "(15
Level )
The blue light flashes twice for 5
seconds
Next track
Long press button" "
The blue light flashes twice for 5
seconds
Previous track
Long press button" "
The blue light flashes twice for 5
seconds
Incoming call
Short press button" "
When the call: red light flash interval
200ms
After answering: Blue LED light flash
twice per 1s
Reject call
Long press button" "about 2
seconds
After reject call blue LED light solid
on
End call
Short press button" "
The blue light flashes twice for 5
seconds
Last number redial
Long press button" "about 2
seconds
Red light flash interval 200ms
Sound transfer
When you answer the call, press
the "power on / off" button for 2
seconds to switch the call between
the
Blue light is always bright
Call to Keep
When the two sides call,
third-party calls, long press
"power on / off" button, you can
keep the current call, answer
third-party phone
Blue light is always bright
Unlock the call
When the two sides call,
third-party calls, short press
"power on / off" button, you can
hang up the current call, answer
third-party phone
After the call is released, the blue
light flashes twice for 5 seconds
Line in input
Insert the Line line, the Bluetooth
sound source is cut off, then the
Bluetooth headset can hear the
line to play the music, this time
Bluetooth is not shut down to be
manually shut down.
The call comes in when
playing the music
When playing music, there is a
phone call, the music is
automatically paused, and the
music automatically plays the line
after the call ends.
Bluetooth pairing
In the shutdown state, long press button“ ”about 3 seconds, there is “power on”voice prompt, Release the
button, if the headset is the first time to power on, it will automatically enter the pairing mode. If there is
information of matched device, the bluetooth headphone will enter the standby state (Bluetooth headset will
automatically return to the phone, the connection time is 3 minutes), Blue light interval 200ms Flashing at this time.
If not connected to the device, the device will automatically shutdown after standby 10 minutes.
Trouble shooting
Q1. Why can’t I power on the headphone?
A1.1. The earphone may have run out of the battery power. Please charge the battery using the charging cable.
Q2. Why can’t I connect the earphone to my bluetooth device?
A2.1. The bluetooth function on your device may have been turned off. Please turn on the bluetooth function on
your device and allow it to search for compatible devices.
A2.2. The earphone may have been connected to another device.
Please disconnect (unpair) the headphone from the previous device before connecting them to a new one.
A2.3. The earphone may not have been recognized by your device.
Please turn off the headphone, turn them back on, search for the headphone on your bluetooth enabled device, and
make the connection again.
A2.4. The earphones may be too far away from your bluetooth device. Please make sure that the headphones are
close enough to your device, and there is no obstacle between them.
Q3. Why aren’t the earphones playing sound tracks in the bluetooth mode?
A3.1. The earphones may not have been selected as the output device.
Please adjust the settings on your bluetooth enabled device to use the earphones to play the sound tracks.
A3.2. The volume may have been adjusted to the minimum. Please press to increase the volume.
Q4. Why is the sound quality very poor in the bluetooth mode?
A4.1. The bluetooth connection may not be in its optimal condition. Please make sure that the earphones are close
enough to your device, and there is no obstacle between them.
FCC NOTICE
changes or modifications not expressly approved by the party responsible for compliance could void the user’
s authority to operate the equipment.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursu
ant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful inter
ference 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 communic
ations. However, there is no guarantee that interference will not occur in a particular installation. If this equipme
nt does cause harmful interference to radio or television reception, which can be determined by turning the equi
pment off and on, the user is encouraged to try to correct the interference by one or more of the following mea
sures:
– 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.
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.
