User's Manual

13
Headphones and Speakers
You can plug headphones (not supplied) or an
amplified speaker (not supplied) with a
1/8-inch (3.5 mm) mini-plug earphone or in the
headphone jack on top of your scanner. This
automatically disconnects the internal speaker.
NOTE: Use an amplified speaker with this scanner;
Non-amplified speakers do not provide sufficient
volume for comfortable listening.
Listening Safely
To protect your hearing, follow these guidelines
when you use headphones:
Set the volume to zero before putting on
headphones. With the headphones on, adjust the
volume to a comfortable level.
Avoid increasing the volume after you set it. Over
time, your sensitivity to a volume level decreases, so
volume levels that do not cause discomfort might
damage your hearing.
Avoid or limit listening at high-volume levels.
Prolonged exposure to high-volume levels can
cause permanent hearing loss.
Wearing headphones while operating a motor
vehicle or riding a bicycle can create a traffic hazard
and is illegal in most areas. Even though some
headphones let you hear some outside sounds
when listening at normal volume levels, they still can
present a traffic hazard. Exercise extreme caution!