User's Manual

Thank you for purchasing the AIHOOR A4 True Wireless Stereo earbuds. Please read this user
manual carefully and keep it for future reference. If you need any assistance, please contact
our support team with your product model number and Amazon order number.
In the Box
Ear-tips
Charging Case
Earbuds
User Manual
USB-C
Charging Cable
Quick Start
Guide
Specifications
Product Number
Bluetooth Version
Charging Time
Battery Life
Earphones Impedance
Maximum Output Power
Frequency Range
Microphone Sensitivity
Battery Capacity
Bluetooth Effective Distance
Product Weight
Charging Voltage
Waterpoof Rating
AIHOOR A4
5.1
≈2h
≈20h (with case)
≈5h ( earbuds only)
32Ω
5mW
20Hz-20KHz
-38dB@1KHz
500mAh
10m
45g/4g (each earbud)
DC 5V
IPX4
A2DP / AVRCP/HSP/ HFP Bluetooth Protocol
PRODUCT DETAILS
Please charge the earbuds and the charging case for at least 15 minutes for the first time.
before first use.
LED Indicator
Multi-Function Touch Panel
LED Charging IndicatorUSB-C Charging Port
LISTENING COMFORT
Choose the ear-tips that fit your ears beast
Choose the ear-tip with the most comfortable
fit and best seal. To change an ear-tip, gently
pull it off from the earbud and press on the
new one.
Wearing the Earbuds
Gently insert the earbuds into the ear and
adjust to a comfortable position by rotating
them. R is for the right ear, and L for the left.
BATTERY LIFE AND CHARGING
Battery life
In Bluetooth mode the buds can last for 5 hours of continuous play. Using the charging
case, this can be extended to 25 hours.
Charging the earbuds
Place the earbuds in the charging case and they will automatically shut down and begin
charging.
Power display
The red light is on when the battery is 0-30% remaining , the yellow light is on when the
battery is 31%-70% remaining, and the green light is on when the battery is 71%-100%
remaining.
Charging the charging case
TOUCH CONTROLS
Touch Control
Music Play/Pause
Next Track
ANC ON /OFF
Answer
Hang Up
Decline Call
Activate Voice
Assistant
Left ear
Right ear
Tap Tap
Double-tap
Tap Tap
Long-press 2s
Long-press 2s Long-press 2s
Long-press 2s
Long-press 2s Long-press 2s
Triple-tap
● Adjust music and call volume from your device only
Triple-tap
AUTOMATIC CONNECTION
Automatic remote connection
1. When you turn on the earbuds, they will automatically reconnect to the lastpaired
device or enter pairing mode if no paired device is found.
2. In pairing mode, the earbuds will automatically turn off after 5 minutes if no devices
are paired.
3. Place the earbuds in the charging case then close the charging case,they will automati-
cally shut down and begin charging.
4. If the Bluetooth connection is lost, they will automatically begin pairing.
Paring
Starting with the earbuds in the case:
1. Take the left and right earbuds out of the case. They will automatically turn on and
connect with each other within 3 seconds.
2. After the earbuds have connected each other successfully, the LED light of flashing red
and blue for paring.
3. Turn on the pairing function on the device to be paired with the earbuds.
4. From the list of available devices, find and select "AIHOOR A4 " from the list of available
devices.
5. If the earbuds have connected with your device, the earbuds start flashing blue for
one second.
6. If a code or PIN code is required for pairing, please enter "0000"
Reset
You might need to reset your earbuds if you experience any connectivity problems or
function issues.
（1） Place the earbuds in the charging case and leave the case open.
（2）Press and hold the button on the side of the case for 6 seconds until the LED
indicators flash red
NOTE:
● If one of the earbuds has no sound output, put both earbuds back into the charging case
and take them out again.
● The maximum wireless operating range is 10m (33ft). If you exceed this range, the
earbuds will disconnect from your paired device. The connection will be re-established if
you re-enter the wireless range within 5 minutes. The earbuds will automatically reconnect
to the last-paired device. To connect with other devices, repeat the previous pairing steps.
SAFETY INSTRUCTIONS
1. Do not place the earbuds in extremely high or low ambient temperatures for an extended
period of time. Extreme temperatures will cause the device to deform.
2. Use electronic equipment with caution during thunderstorms.
3. This product contains small parts which could cause harm if swallowed. Keep out of the
reach of children.
4. Using the earbuds for a long time at high volume may affect your hearing. Make sure to
use an appropriate level of volume.
BATTERY WARNING
This product contains a lithium battery. Please do not disassemble, strike, crush, or place the
product into contact with flames. Do not expose to high temperatures or direct sunlight for a
prolonged period. If there is any swelling, leakage, odor, or any other abnormality in the
battery compartment of the product, cease use immediately. Please dispose of used
batteries properly and in accordance with local regulations.
READ ALL INSTRUCTIONS BEFORE USE AND SAVE THESE
INSTRUCTIONS FOR FUTURE REFERENCE
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.
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, (2) this device must
accept any interference received, including interference that may cause undesired
operation.
Any changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
This transmitter must not be co-located or operating in conjunction with any other antenna or
transmitter.
This device complies with FCC radiation exposure limits set forth for an uncontrolled
environment.
FCC RF EXPOSURE STATEMENT:
CAUTION!
Model: A4
AUSOUNDS Intelligence, LLC.
www.aihoor.net | [e-mail]
Designed by AUSOUNDS In California USA
FCC ID: 2AZLD-ARA4
AIHOOR A4
说明书尺寸：95*95mm
80双铜单色印刷
O5HT
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Previous Track Double-tap
NAME:
EMAIL:
DATE OF ORIGINAL PURCHASE:
DEALER
PHONE NUMBER
MODEL
DESCRIPTION OF PROBLEM
WARRANTY CARD
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.