Denver MPG-2052 DRM, Руководство пользователя

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WARNING
Read Safety Instructions Before Making Volume Changes
Safe use depends on exposure time and volume levels.
Volume at 80 dB(A), exposure should be limited to 40 hours/week. At 89 dB(A)
exposure should not exceed 5 hours/week.
— When using your MP4 player, pay attention to your health, especially the
power of hearing.
1. Do not use the earphones while driving or riding a bicycle.
2. It may cause traffic accident if you turn up the volume of the earphones while
walking down the street.
3. Do not turn up the volume too high, doctors warn against prolonged exposure
to high volume.
4. Stop using the device or turn down the volume if you have ringing in your ears.