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  i'm sorry but it is CALLED a shock collar. And you can avoid any collar by giving training a try first. Your dog is not going to understand why all of a sudden he/she is being punished for barking. It also worries me that if he/she needs to tell you he/she is upset or hurt, your dog will have no way of doing that since he has been punished in the past. 
 perhaps she has separation anxiety.. you should try dealing with that first.
 
				__________________ Layla  's Simon |