Dogtra YS300 Notice D'utilisation page 21

Contact Points
YS300 uses Surgical Stainless Steel contact points to protect the
dog's skin.
IMPORTANT : Avoid touching the Contact points unless the
Anti-Bark Collar is completely discharged, or you may feel the
electrical stimulation yourself.
Plastic Dummy Contact Points
If your dog is trained enough, you can replace the Contact Points
with the Plastic Contact Points included in the package. By doing
so, it will allow you to keep the collar on your dog for a longer
period of time with less irritation on the skin. You may also use
the Pager mode as a useful tool in correcting your dog without
the stimulation, however, only leave the collar on for 8-hour at a
time if the stainless steel contact points are still being utilized.
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Collar Strap Adjust
The collar strap of the YS300 can be adjusted 3 steps as shown
in the diagram above.
screws in desired holes, then tighten the contact points as shown
below.
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