Reddit reviews 7mohugme LED Ultrasonic Dog Repeller and Trainer Device 3 in 1 Anti Barking Stop Bark Handheld Dog Training Device (Yellow)

What can you do when your pet dog starts barking non-stop? With the ultrasonic dog trainer, you can train your pet to be obedient, corrects misbehavior and stops barking. The trainer is based on the theory that ultrasound (more than 20KHZ) is above the upper limit of human hearing and super ultrasonic and 2800mcd strong white light. It can activate visual and additive activation to dogs, cats and other animals, but there will be no effects on people.Easy to operate: first open the battery cover and then put 1 piece 9V battery (Not Included), the sound is audible only to pets, finally turn on the switch and it can work well, also they can serve as a flashlight when necessary.Handheld and convenient: size of the device is approx 5x1.8x1 inch (LWH), which is portable and handheld, also convenient for you to carry anywhere you need, such as jogging or walking, cycling, park and so on.A must item for pet owners for training dogs such as that are used as pets, in police and for shepherding.(We can't ensure it is useful for all dogs but if you met any problems please contact us). We offer you replacement or 100% money back if you are not 100% satisfied with our product.Package includes:1 piece ultrasonic dog trainer and 1 piece user manual; Dog trainer color:yellow