Anti Barking Device Ultrasonic Dog Barking Control Devices & Dog Training Tools, Outdoor Waterproof Bark Box Dog Barking Deterrent Safe for Human & Animal

1. Double Ultrasonic Speakers: Stronger anti-bark effect 2. Use Ultrasonic to Stop Barking: Safer & more Humane 3. Suitable for Most Dog Breeds: For your own or neighbor's Dog 4. Simple and Easy to Use: One-button start 5. Rechargeable, More Economical: Save five 9V batteries per month, valued at $20 6. Suitable for Indoor and Outdoor: Ipx4 Waterproof, suitable for hanging or placing 【Safe for Dogs & People 】Ultrasounds will not cause interference or harm to humans because humans cannot hear these frequency bands, but dogs are sensitive to these ultrasounds. Some dogs may be afraid or dislike the sound and won't stop barking at first, so please turn the knob to test different frequency bands for best results. 【Dog Bark Control & Dog Training 】Anti bark device has 3 adjustable ultrasonic modes. (Test, Low, Medium, High) which is suitable for dogs of all breeds and all sizes. Stop excessive, noisy dog barking by emitting an ultrasonic sound to silence the dog. 【Wide Ul