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1020 IS-20970

π

  S-20970

3M

®

 PELTOR™ 

WORKTUNES™ PRO

1-800-295-5510

uline.com

INSTALLING BATTERIES

These earmuffs require two AA batteries (included). 

1.  Open the battery cover. (See Figure 1)

2.  Insert two AA batteries. Make sure the 

+ and – poles are correctly positioned. 

Replace cover. 

USING RADIO

1.  Switch on and off by holding On/Off/Mode button.

2.  Press the + or – button to adjust volume. 

(See Figure 2)

NOTE: There are eight volume levels. 
The lowest level is mute, which 
enables listening to external input.

NOTE: To use external input, use a 3.5 mm stereo 
cable (not included) to connect external audio 
source to the input jack on earmuffs. Set earmuff 
volume to zero and use external device control to 
determine volume level.

3.  Press the On/Off/Mode button to search a station. 

A voice message confirms, saying, "search station." 

Press + or – button to change station. A voice 

message says frequency, followed by a short tone 

when you exit search mode.

4.  To switch radio band, press On/Off/Mode button until 

voice message says, "radio band." Press + or – 

to switch between AM and FM.

5.  To store station in presets, press and hold On/

Off/Mode button while in search mode. A voice 

message, "station stored," will sound. To access 

presets, push On/Off/Mode button until voice 

message, "stored station," is heard.  Press + or –  

to browse preset stations.

NOTE: Unit automatically powers off after four 
hours of inactivity, indicated by voice message, 
"automatic power off," followed by short tones. Press 
any button during message to avoid power off.

FITTING INSTRUCTIONS

NOTE: For best protection, ear cushions should 
seal firmly against the head. Do not bend and 
reshape the headband, as this will cause loose 
fit and sound leakage.

Brush excess hair aside and remove any ear jewelry that 

may affect acoustic seal before attempting to fit the 

earmuffs.

1.  Slide out the ear cups and place over 

ears so the cushions fully enclose the 

ears and fit snugly against the head. 

(See Figure 3)

2.  Adjust the height of both cups while 

holding the headband flat on head.  

The headband should lie across the top of the head.

SET UP AND OPERATION

Figure 3

Figure 2

Para Español, vea página 2.

Pour le français, consulter la page 3.

Figure 1

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