Nevir NVR-2766DVD-PUCT2 User Manual page 17

CONNECTION
SYSTEM CONNECTION
CABLES IN OPTION
This product is a portable device typically used in outdoor or indoor
environments, such as inside a vehicle. For this reason, the audio
volume, even at maximum, can be affected by ambient noise itself
where it is used.
For correct audio volume, the use of headphones is recommended.
PROTECT YOUR HEARING SENSE:
Experts advise against the constant use of stereos that play loud.
Constant exposure to high volumes can cause hearing loss. If you
experience ringing in the ears, hearing loss, discontinue use and
consult a physician.
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