DUOYINFO i28 Wireless Earbuds Instruction Manual
- June 5, 2024
- DUOYINFO
Table of Contents
DUOYINFO i28 Wireless Earbuds
CONNECT
- Take out the earbuds (Earbuds auto power on)
- After opening the phone Bluetooth, Click the
to Pairing 
Reset
If the earbuds have any connection or function problems, please reset the earbuds
- Delete the BT pairing information on the phone.
- Put the earbuds into the charging case to charge.
- Take out the earbuds and wait for 20 seconds.
(If the above operation does not work, please try again)
Operation
- X1: Click Once
- x2: Click 2 times
- O2s: Press and hold for 2 seconds
Problem handling
-
Can be connected but there is no sound:
Click the right earbuds to increase the volume. -
One of the earbuds cannot be charged:
Clean the charging contact of the earbuds and the charging case. -
One of the earbuds cannot be connected:
Reset the earbuds.
If the earbuds cannot be charged, please activate the warranty and contact us
to send a new product.
Warning: Please clean the charging contacts of the earbuds and charging
case frequently to avoid charging failures.
Safety Instructions
- Keep the product away from extremely hot and cold environments, it will damage the battery and circuit.
- Avoid liquid immersion into the product.
- Do not disassemble the product.
- Do not use concentrated chemical products or detergents to clean the product.
- Use only a 5V/1A power supply. Connecting the power supply voltage too high may cause serious damage.
- Do not randomly discard or place the product near a fire or high temperature to avoid the danger of an explosion.
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 harmfül
interference to radio communications. However, there 1S 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.