Review on PetSafe Ultrasonic Dog Bark Training Collar: Static-Free Correction for Large and Small Dogs by Brian Crockett

I bought this device because we have a home ultrasound device that will stop my dog from barking. I received the device and tried to insert batteries. The battery door would not open and I pulled and due to the way this unit is made it would not open. I tried to open the device with a small flat head screwdriver, when I tried to open the battery compartment it broke. I would avoid this product due to the poor quality. I don't know if it will work as all I have is a piece of junk I can't return. In fact, I would give it zero starts if I could.