Common Problems
(1) The earset may disconnect when the battery is low. In
order not to affect its normal use, please charge the earset in time.
(2) If the earset fails to turn on, please try to charge it first, and then try
to turn it on again after fully charged.
Attention
(3) If the battery is exhausted or has not been used for a long time, there may
be no signal light at the beginning of charging.
This will normally light up in red after a few minutes.
(4) No sound from the earset.
Make sure the Bluetooth earset is turned on.
Make sure the earset is successfully connected to the phone / computer.
Make sure that the distance between the earset and the device does not
exceed the effective distance of 10 meters( about 32.8 feet).
Make sure that the music playback output selects the right Bluetooth device
Make sure that your device is within a strong signal range and there is no
external interference.
Check whether your phone is connected to other Bluetooth devices.
(5) The earset model cannot be searched.
Make sure the earset is in pairing state and ready to connect.
There may be a program error between the earset and phone.
Please restart the device or contact the manufacturer to repair it.
Make sure that the call selects CT4003 standby status, not the phone or
computer speaker status.
A. Using non-original accessories may result in low performance, short
circuit, or damage to the earset, which is not covered by warranty.
B. Disassembling personally may damage the earset and will not be
covered by the warranty.
C. Do not use it in a dusty environment.
D. Please use a clean, soft, and dry cloth to clean the earset.
E. Keep the earset in its original packaging when not in use.
F. Keep kids away from the earset, they may be injured or damage the earset.
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