This bark control device was used to help pet owners to stop their dogs barking by transmitting ultrasound.

Working Principle:
When a barking dog is detected within 50 feet, the anti barking device automatically emits ultrasonic waves that only dogs can hear; humans cannot hear these bands, but dogs are sensitive to these ultrasonic waves. They will associate their barking with the annoying sound waves, which will stop the dog from barking. When the dog stops barking, the ultrasonic waves will also stop.

Attention
1. If the dog is deaf or hearing impaired, it may not react to the bark box.
2. Some dogs may be afraid or dislike the sound and will not stop barking at first, you can use it with the command: "no bark", please allow two weeks for training.
3. After the dog stops barking, you can turn off the dog barking control devices to avoid that the training effect will be reduced after the dog gets used to the ultrasonic waves.

Anti Barking Device Features:
Sensor distance: Up to 50 feet.
Dural and weatherproof for indoor and outdoor use.
4 different frequency waves to avoid dogs getting used to simple frequencies.

Package includes:
1 x Anti Barking Device
1 x User Manual
1 x Lanyard