Optimus CR-307 User Manual

6

For private listening, you need a pair of
headphones (not supplied) with a 

1

/

8

-

inch (3.5 mm) plug. Your local Ra-
dioShack store has a wide selection of
headphones.

Plug the headphones into the 

jack on the back of the clock

radio.

Note: When you connect head-
phones, the internal speaker is auto-
matically disconnected.

To protect your hearing, follow these
guidelines when you use headphones.

• Set the volume to the lowest set-

ting before you begin listening.
After you begin listening, adjust
the volume to a comfortable level.

• Do not listen at extremely high

volume levels. Extended high vol-
ume listening can lead to perma-
nent hearing loss.

• Once 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.

Illust.

12-1610.fm  Page 6  Friday, July 9, 1999  10:10 AM