Petsafe Ultralight Sonic Bark Control Collar - Manual (Page 4)

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STEP 3 SET MICROPHONE SENSITIVITY LEVEL
Locate the microphone High/Low switch on the side
of the unit. Begin with the setting in the low position.
If the unit does not emit a sound correction when the
dog barks, move the switch to the high setting.
STEP 4 ATTACH TO COLLAR
Note: Do not place unit on your dog without reading the
Training Manual.
Collar material thickness should be approximately
1/16", and no wider than 1". Slide the collar under all
four clips. Be sure the unit is placed in the center of the
collar, opposite of the buckle, and fits snuggly against
the middle of the dog’s throat. The microphone may
not activate properly if the unit is rotated to the side
or if the collar hangs too loosely. Remove any tags from the collar to avoid
triggering a false stimulation.