Review on 🔊 Kemo Electronic M161 Ultrasonic Power Cannon by Michelle Hall

I've tried several other ultrasound machines to try and get my neighbor's 100 lb LGD to stop barking. If she just walked out my door, she would run at me from wherever she was and bark non-stop until a few minutes after I came back inside. I tried ignoring them, then hot dogs and steak to be nice, and then I started trying bark deterrents. All other deterrents scarcely caught their attention. 5 seconds after turning it on, it moved away from where I was aiming and just stared for a couple of minutes and then walked away. Of course she got back to it half an hour later when I went back out, but I'm sure it's enough to make a portable battery operated version using my drill's battery pack adapter, a 12V 3A regulator and a horn button. For this test, I used a regulated power supply set at 12V. The tube I use is a vacuum extension tube that is about 2 feet long with an outside diameter of about 2.5 inches. Ridgid VT2508. Will be updated after further testing.