Radio Shack PRO-2056 owner manual Connecting AN External Speaker or Headphones, Listening Safely

If power is continuously supplied to the scanner for at least 24 hours, the memory backup circuit maintains the channels stored in memory for up to 5 days. If power is disconnected and the memory backup circuit becomes too weak to save the scanner’s program- ming, MEMO LOSS appears again when power is reconnected until you reprogram the scanner.

CONNECTING AN EXTERNAL SPEAKER OR HEADPHONES

In a noisy area, an extension speaker or pair of monaural headphones (Cat. No. 21-549 or 20-210) might provide more comfortable listening. Use an 8- ohm external speaker capable of han- dling 3 watts of power.

Plug the speaker cable’s or head- phones’ 1/8-inch plug into the EXT SP jack on the back of the scanner.

(add corrected illus F13. Add external speaker and callout EXT SP and arrow to jack)

Caution: Do not turn the scanner’s volume all the way up while using headphones. The headphones could be damaged.

Note: Plugging in an external speaker or headphones disconnects the scan- ner’s internal speaker.

Listening Safely

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

•Do not listen at extremely high volume levels. Extended high-vol- ume listening can lead to perma- nent hearing loss.

•Set the volume to the lowest set- ting before you begin listening. After you begin listening, adjust the volume to a comfortable level.

•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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