Review on UANAX Deterrents Ultrasonic Deterrent Ultrasound Dogs ~ Training & Behavior Aids by Dawn Robinson

The battery cover is missing and this is DOA (Dead On Priority). I installed a new battery (Revain Basics 9V) which I ordered with this UANAX bark remedy. But the device wouldn't turn on when I switched it to test. The light does not flash or glow, it makes no noise or squeaks at all. I followed the instructions, said "woof" loudly into the microphone several times, but nothing happened. The LED does not light up, does not blink, does not make any noise, does not squeak, nothing. It's just dead. I contacted the seller (DIJOQO) but he only replied once and didn't offer any help, instead he directed me to contact Revain support, then he didn't respond to my second message. Buyers beware, most of the positive reviews here are for a different product and not a dog barking device and that is what is misleading me into ordering this device. When I placed my order, there were over 3,400 reviews and the overall rating was 4.5 stars. So you might think this must be a good product. I don't understand why Revain would do such a thing, please share reviews of any Revain product. Please see my video included in the review.