5. Poor sound quality.
• Move your mobile device closer to the earbuds (30 ft. or
10 m) and away from any interference or obstructions.
• Make sure that both earbuds fit securely in your ear.
• Use a different music source.
• Try connecting another mobile device.
• Clear any debris or wax buildup from the earbuds and
earbuds nozzles.
6. Earbuds don’t charge.
• Make sure the earbuds are properly placed in the
charging case.
• Make sure the charging case battery is not depleted.
• Make sure there is no dirt or debris covering the
charging conductors within the case or on the earbuds.
• If your earbuds have been exposed to high or low
temperatures, let the earbuds return to room
temperature and then try charging again.
7. Charging case doesn’t charge.
• Check the case battery level by gently pressing the
button on the case. If needed, charge the case with the
supplied USB cable.
• Secure both ends of the USB cable.
• If your charging case has been exposed to high or low
temperatures, let the case return to room temperature
and then try charging again.
8. No sound.
• Press play on your mobile device to make sure the audio
track is playing.
• Place the earbuds in the charging case to check the
earbuds charging status. If needed, charge the earbuds.
• Increase the volume on the earbuds and mobile device.
• Press the Bluetooth button to hear the connected
mobile device. Make sure you are using the correct
device.
• Move your mobile device closer to the earbuds (30 ft.
Or 10 m) and away from any interference or
obstructions.
• Use a different music source.
• Connect a different mobile device.
9. Earbuds cannot pair each other or only one earbud
worked.
• If the earbuds are currently or had already been
connected to a Bluetooth device, click "forget" or
remove "dcu_sport" from your Bluetooth settings and
turnoff Bluetooth on your device.
• Then put the earbuds into the charging case, plug in
the charging cable to charge the earbuds, then press
and hold the touch panel for 5 seconds, the blue
lightflashes three times to clear the Bluetooth pairing
record.
10. Cannot hear a person on a call.
• Check that both the earbuds and the connected device
(i.e., smart-phone) are turned on.
• Turn up the volume of the connected device if it is too
low.
• Check the audio settings of the Bluetooth device to
make sure the sound comes from the earbuds during a
call.
• Re-establish the connection using the Bluetooth device.
• While listening to music with the earbuds, stop
playback and press the button on the right or left unit
to respond to an incoming call.
11. The Bluetooth connection and sound signal are
unstable.
• The Bluetooth device is out of range. Please shorten the
distance between the earbuds and the Bluetooth
device. And keep away from any interference or
obstacles.
ENG
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