aitu BL21 Sports Bluetooth Headphones User Manual

Sports Bluetooth headphones
User manual

• Please read this user manual carefully, follow the manual to operate and use this product correctly.
• Please keep this manual for future reference.

PACKAGE CONTENTS

Category List|
---|---
Bluetooth Headphone| X 1
Charging Cable| X 1
User Manual| X 1

PRODUCT OVERVIEW

1. Indicator
2. Volume+
3. Multifunctional button
4. Volume Charging
5. Contacts
6. MIC

HOW TO PARING

1. Power on: Long press themultifunctional button for 4 seconds, and Bluetooth power will power on.
2. Paring with your device
   2.1.Long press the multifunctional button for 5 seconds, indicate”Power on”, with alternating red and blue lights flashing rapidly, the Bluetooth headphones in pairing mode.
   2.2.Turn on the Bluetooth of your device, select”AITU23″from the list of found Bluethooth devices and pair.

Attention:
The headphones will automatically reconnect to a connected device. If you need to connect to another Bluetooth devices, simply turn off the previously connected Bluetooth device or repeat the above steps.

HOW TO CHARGE

1. When the red indicator light flashes, please charge the headphone.
2. When charging, please use the provided charging cable to connect the headphones.
3. A full charge of the headphones takes 2 hours. The red indicator light remains while charging, The blue indicator light remains while charging completed.

Attention:

1. Please make the charging interface cleanbefore charging, keeping it dry and clean.
2. Charging voltage is DC5V.

CONTROLS

BLUETOOTH FUNCTION

FUNCTION| OPERATION
On/Off| Long pressthe multifunctional button for 4 seconds
Play / Pause| Press the multifunctional button
Previous Track/Next Track| Long press the volume+/
Volume| Press the volume+/-
CALL FUNCTION
FUNCTION| OPERATION
Answer / End a Call| Press the multifunctional button
Reject a Call| Long pressthe multifunctional button for 2 seconds
Recall| Double pressthe multifunctional button
Volume| Press the volume+/-

FAULT ANALYSIS

headphones and Bluetooth devices less than 10m. Press the connection button again.
FAIL TO PLAY MUSIC| Bluetooth connection failed| reconnect device
No voice during the call| Bluetooth connection failed or not on the Bluetooth mode| Reconnect the device or switching the phone to Bluetooth mode

SPECIFICATION

• Wearing method: In ear collar style
• Bluetooth version: V5.4
• Bluetooth profile:A2DP/AVRCP/HSP/HFP
• Bluetooth range :10m
• Interface type :TYPE-C
• Interface battery capacity:210mAh
• Frequency response:20Hz-20KHz
• Music playing time: about 12H (slightly different depending on the style and volume of the device)
• Standby time: about 450H

Storage and Maintenance

1. Storage:
   Please store the product in a cool and dry environment.

2. Maintenance:
   a. Suggest using in a temperature range of 10-45C;
   Overheated, cold, or humid environments can accelerate battery aging and affect the lifespan of headphones.
   b. Avoid using headphones during thunderstorms.
   c. Please charge the headphones after leaving unused a while.
   d. Please clean the headphones with a dry soft cloth.
   e. If there is water or sweat at the charging interface, be sure to use a soft cloth for cleaning.
   f. The product should be kept away from sharp edges or corners.

FCC Information and Copyright

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.
15.19 Labelling requirements.
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.

changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
FCC RF warning statement: the device has been evaluated to meet general RF exposure requirement , The device can be used in portable exposure condition without restriction.

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