Radio Shack 20-163 User's Guide download pdf (Page 12)

Headphones and Speakers

You can plug headphones or speaker (neither included) into your

scanner.

To use headphones, connect the plug into the headphone jack

on the front panel. Headphones automatically mute the scanner’s

speaker.

To use external speaker, connect the plug into the EXT SP jack on the

rear panel.

Even though some earphones/headphones let you hear some

outside sounds when listening at normal volume levels, they still can

present a trafc hazard.

To protect your hearing, follow these earphone or headphones

guidelines:

• Do not listen at extremely high volume levels. Extended high-

volume listening can lead to permanent hearing loss.

• Set the volume to the lowest setting before listening. Turn on

the scanner, and adjust the volume to a comfortable level.

• After you set the volume, do not increase it. Over time, your ears

adapt to the volume level, so a volume level that does not cause

discomfort might still damage your hearing.

• Do not wear headphones while driving. This can create a trafc

hazard and is illegal in some areas.

Keytones and Brightness

Your scanner features a backlit keypad and display for easy viewing

and sounds a tone each time you press a key.

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Radio Shack 20-163 User's Guide Page 12