Review on MODUS Automatic Recognition Ultrasound Barking，Safe by Mary Jones

Update: My original rating was 3 stars. The more I thought about it, the more I realized I had to change my overall rating by one star. It never worked as far as I can tell. Now think that 3 stars was too generous. Our dog knew something was wrong as soon as we tried to pick up her barking. By the time you set up the recording and hold the device up to his face, he'll stop barking and go and lie down. Not only that, but there was no way to determine if the device actually worked. Yes, you can check, but you don't really know if you've recorded a barking dog. I had high expectations for this device but was very disappointed. There's also no way of knowing if the battery is charged.