I would not use one especially for a yorkie. I had one for my Aussie mix who weighs about 90 lbs. he was an escape artist and would always find was out of the yard. I set up a wireless fence with collar inside mt back yard so it would warn than shock him if he got to the fence line. It did not deter him. He would get to the fence and warning sound would go off. He wouldn't stop and continued climbing the fence while getting shocked. Once he got over the fence he was stuck outside as it would again schock him if he tried to get back in the yard. I found my dog outside playing in the neighbors fields. I thought he might have learned his lesson so tried it once more (schock is not horrible but uncomfortable for 90lb dog as my husband tested it on his thigh) same result as first time. I decided was not worth it.
Down side also if only using wireless fence it would not stop other animals such as coyotes or other strays from coming onto property if there was no actual fence.
Another thing, my dog weighs 90 lbs, I would not even consider using it for any dog under 25lbs, as the schock even on the low setting would be painful. |