Dongguan M28 Sports Bluetooth Earphone User Manual

Dongguan M28 is a wireless sports Bluetooth earphone designed for comfortable, secure wear during exercise. It features a compact design, Bluetooth 5.3 for stable connection, and convenient controls for music playback and calls. It also boasts a long battery life for extended use and comes with a Type-C charging cable for quick and easy charging. Enjoy your workouts with the M28's clear and powerful sound.

PDF

Document

NOTES!
BUTTON FUNCTIONS ICON
2.Please use standard charger to charge the earphone
in case of causing battery damaged.
3.Please keep away from fire when using the earphone.
2
Made in China
Power on / Power off
1 Hang on / Hang off
Play music / Pause music
5.Please don’t use the earphone at high volume or for a
long time.Avoid affecting the user’s hearing.
6.Please do not disassemble the earphone for any reason.
7.Please do not clean the earphone with oil or other
corrosive cleaning agents.
8.Please do not use the earphone in potentially
dangerous places.
Volume up / Next song
Second Step
Open the bluetooth device from mobile phone,
and searching the pairing name “M28”to pair.
Others Pairing
4.Please do not make the ports bloked,such as charging
port,LED and earphone,etc.
USER MANUAL
Long press“ 1 ”function button
First Step
Long press 1 function button to turn on until
the red and blue light flash alternately,it gets
into pairing mode.
1.Please read the manual carefully beforeusing the
earphone,and operate strictly according to the
requirements.
Sports Bluetooth Earphone
QUICK PAIRING
3
Volume down / Last song
The earphone will auto connect with mobile
phone if already connected last time.
Long press 3s:Power on
Long press 5s:Power off
A call coming in:Long press 2s to reject
CHARGING
Charging
Fully Charged
Red light
Blue light
SPECIFICATIONS
Product name: Bluetooth Earphone
BUTTON FUNCTIONS
Bluetooth version:V5.3
Battery capacity:110mAh
Click“ 1 ”function button
1.Anwser
2.Hang up
3.Play music
4.Pause music
Driver Unit:10mm
Charging time:1H
Sensitivity:98&plusmn;3dB
Working range:10M
Click“ 2 ”button
Volume up
Click“ 3 ”button
Volume down
Long press“ 2 ”button
Next song
Long press“ 3 ”button
Last song
Bluetooth protocol:A2DP、HFP、HSP、AVRCP
ACCESSORIES
Bluetooth earphone*1 User manual*1
Type-c charging cable*1
Safety Informa
1. To ensure your personal safety, do not wear or place the headset too close
to the pacemaker position (less than 10CM).
2. Do not plug into the power socket.
3. The device should be used by children under adult supervision. The
product is not a toy.
4. Using headphones at high volumes,especially for long time,maybe it can
cause damage to your hearing.
5. Operating a hi-fi switch or plugging in a headset may produce a shrill
sound at high volume setting may affect your listening. Therefore,please
volume down before switching between various audio sources or inserting
headphones.
6. For traffic safety, do not use headphones while driving or cycling
7. Please keep the product at an appropriate temperature between -10℃
and 55℃.
Warninn Data
1. If the battery is not properly replaced, there will be explosion risk.Please
only replace the battery with the same type or equivalent type.
2. For removable battery products, batteries must be recycled or properly
disposed,for non-removable batteries disassembling is prohibited.
3. Do not disassemble, bump, squeeze or throw the battery into the fire. Do
not expose the battery to conductive materials,in liquid, fire, or heat.
4. Keep metal objects away from the battery's poles.Please don’t continue to
use if the battery appears to swell, leak, discolor,odor or any other
abnormality.
5. Do not use if the battery is immersed into water.
6. If improperly used, batteries could be explode or leak, causing burns and
other injuries harm; If batteries leak,please take care and follow local battery
disposal laws and regulations to discard batteries.
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.
Any 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, 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.
The device has been evaluated to meet general RF exposure requirement.
The device can be used in portable exposure condition without restriction
">

Hello! I am an AI chatbot specifically trained to assist you with the Dongguan M28 User manual. I have thoroughly reviewed the document and can help you locate the exact information you need or explain the content in clear and simple terms. Whether you’re looking for guidance on specific features, troubleshooting steps, or general usage, feel free to ask your questions. The more details you provide about your concerns or needs, the more accurately and effectively I can assist you!

Show related prompts

Assistant typing

Assistant is out of keyboard. Please, try again later.

Key features

Bluetooth 5.3 for a stable and fast connection
110mAh battery capacity for up to 8 hours of playtime
10mm driver unit for powerful and immersive sound
Comfortable and secure fit for all-day wear
Easy-to-use controls for music, calls, and volume
IPX4 water resistance for protection against sweat and rain
Built-in microphone for hands-free calling

Frequently asked questions

First, turn on the Bluetooth function on your phone. Then, press and hold the power button on the Dongguan M28 for 3 seconds to enter pairing mode. The LED light will flash red and blue. Finally, select "M28" from the list of available Bluetooth devices on your phone.

To charge the Dongguan M28, simply connect the included Type-C charging cable to the charging port on the device. The LED light will turn red while charging and blue when fully charged.

You can control the music on the Dongguan M28 using the buttons on the device. To play or pause music, press the power button once. To skip to the next song, press the volume up button twice. To go back to the previous song, press the volume down button twice.