pug photos

Is it common or OK to put a crust / necklace downloading this BIG in a small Pug???
I was in the center parking lot today's business, and saw a Pug sat in the truck next to mine. He or she had a bark collar, with a big box connected to it. The photo below is an example / recreation of the Pug I saw the collar of bark much of it. Http: / / img380.imageshack.us/img380/331/examplepugfo7.jpg it is normal for a necklace from the bark of a small dog to take a picture so great about it??? Or put a bark collar on him it was for a large or extra large dog? I saw that there was Pug boosting the bark of me, but hesitated and sat down again. or She hesitated and sat down again, I do not know if it was a him or her. I do not know much about the shock collars, I might add.
This may or may not have been a shock collar. First, it could be a collar that emits ultrasonic sound when the dog barks, and could have been a string that releases pheromones that is separation anxiety in dogs and, of course, could have been a shock collar. The only thing is that some of the housing units in the necklaces are a great size and can appear quite large in a dog that does not have a big neck.
Pug Pix- Cute Photos of Pugs