Use provided USB cable. Connect to charging port.
Low battery(less than 10 minutes left)
：
When the voltage is lower than 3.3V, the prompt can be
heard every minute. When the voltage is lower than 3.1V, the earphones will turn off.
Charging: Red light will be on (earphones cannot be used while charging)
Fully charged
：
Blue light will turn on.
Troubleshooting problems
：
1. Bad Noise abatement
1.1
Please confirm whether the earplug can be plugged tightly. If not, please replace the silicone earmuff
with different sizes.
1.2 Please confirm whether the earphones are worn correctly.
2. No sound or bad sound quality
2.1 Please make sure that your cellphone is compatible with earphones.
2.2 Try connecting earphones to another device.
FCC information:
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.
Please note that 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.
FCC ID: 2AQLH-S108
