I bought these collars for my 6 year, 7 pound chihuahua Foxy. She believes that the sun rises and sets on her. She is also very high strung and suffers from very serious separation anxiety. To the point that she has made herself sick.
The other for my granddog, Whipple. He is an 8 month puppy. He too is very highstrung. But in a much different way.
Loves to tease Foxy