Promate RevoBlue User Manual page 9

11. Maintaining your headphones
Ensure to turn the power before storing the device. Keep away from
extreme temperature (45°C/113°F or above, or -10°C /14°F below) and
avoid direct sunlight. Failure to do so may shorten the service life of the
battery and harm the overall operation and damage product performance.
If the device comes in contact with water or other liquids , wipe away the
water stains on the device immediately.
12. Protect your hearing
WARNING: The headset is able to provide extreme high volumes and very
sharp tones. Exposure to such a sound may cause permanent hearing
impairment. The volume level may differ due to your phone settings, the
answering and volume settings, and the environmental factors. Before using
this device please read the safety guide below.
Safety guide
Perform the following steps before use:
• Minimize the volume before wearing the headset, then adjust the volume
to a proper level slowly while wearing it.
• During operation, keep the volume as low as possible and adjust the volume
to a proper level slowly after you wear it.
• Avoid using the device in noisy surroundings, as you may overcompensate
by increasing the volume too dramatically. If you increase the volume level
too high without noticing, it may still result in permanent hearing loss.
• If you feel uncomfortable, or hear a drumming noise in your ears seek
immediate medical assistance.
• Continuous exposure to high volumes may result in you adapting to the level,
which could cause permanent hearing loss without you noticing.
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