Posted by a reviewer on Amazon

No indication to show if battery is weak

Posted by a reviewer on Amazon

No indication to show whether it is working when the dog is barking and the green led doesnt turn on

Posted by a reviewer on Amazon

He goes out the dog door up to the raised deck and gives speeches to the neighbors about what a terrible dogfather i am

Posted by a reviewer on Amazon

I tried a different brand of ultrasonic deterrent a few years ago but it was a waste of money that didnt deter my determined canine from barking

Posted by a reviewer on Amazon

Amazons generous return policy made it riskfree

Posted by a reviewer on Amazon

He can still express his feelings when someone comes to the front door which is far enough away to not activate the first alert

Posted by a reviewer on Amazon

They had only know one place when someone walked by the twins either heard or saw them they would bark

Posted by a reviewer on Amazon

After about the third day as they became more accustomed to their new place they started barking when they heard or saw something