Posted by a reviewer on Amazon

This dog is within 50 feet of my bedroom so bought this product and i set it up to project the alarm out the screen window in the direction fence where the dog barks

Posted by a reviewer on Amazon

On the very first night using the device i could tell that it really worked to stop the barking

Posted by a reviewer on Amazon

When the alarm triggers you can hear a clicking noise and a slight buzz if you listen carefully

Posted by a reviewer on Amazon

The second day using the device i could hear the doberman whining at 5 am because he didnt want to bark anymore

Posted by a reviewer on Amazon

I wrote this review to help people who may have a similar problem with their neighbors

Posted by a reviewer on Amazon

Then we realized we should check the batteries and sure enough they had died

Posted by a reviewer on Amazon

Its hard to get the back off and on properly to replace batteries and it kinda sucks that you cant use the ac power option somehow outside

Posted by a reviewer on Amazon

My biggest complaint is that it has a large green light in the picture it is the part at the top in the middle that appears as a white curved surfacethat entire thing lights up bright green that illuminates any time the device is making the ultrasonic noise