NANO RX2000+, Руководство пользователя

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Follow the next steps if battery issue persists:
Charge your device for 10 minutes. Turn it on until the battery
drains itself out - until the device is “completely dead”, so to
speak. When this happens, charge it for 4 hours. If the problem
persists, give us a call.
Volume / Amplification is not enough: Our devices have a
great amplification level. If your ears are clogged with wax the
sound is reduced. Most of the time, this is the result of not
having a professional ear cleaning. Please, refer to your family
Physician to get an evaluation and a professional ear cleaning.