Optimus 739 owner manual Using Headphones, Listening Safely

Models: 739

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USING HEADPHONES

13-1292.fm Page 6 Wednesday, July 14, 1999 6:37 PM

USING HEADPHONES

You can use headphones (not sup- plied) to listen in privacy. Insert the headphones’ 1/8-inch plug into the PHONES jack on the front of the system.

Notes:

Your local RadioShack store sells a wide selection of headphones.

Plugging in headphones automati- cally disconnects the speakers.

6

Listening Safely

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- volume listening can lead to permanent 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.

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Optimus 739 owner manual Using Headphones, Listening Safely