1. Defer noisy barking by harmless ultrasonic sound

2. Range up to 50 feet

3. 4 levels. Test-used to verify the microphone and speaker are functional. Low Range-up to 15 feet/5 meters (Suggest testing indoors). Medium Range-up to 30 feet/10 meters. High Range-up to 50 feet/15 meters

4. Durable and weatherproof for outdoor use

5. LED light flashes for low battery indication

6. 9V Battery (not included)

▲How To Test Dog Bark Deterrent Devices?

1. Adjust the knob to "TEST" button.

2. Place the item to a position which is one arm's length away from you.

3. Whistle to the microphone of the item loudly, if the LED blinks Green, and you can hear beeping noise, then the item work properly.

▲How the Barking Dog Silencer Works?

1. When the outdoor bark control is within range of a barking dog, a microphone pick up the sound and the unit is automatically activated.

2. The outdoor no bark control emits an ultrasonic sound. (ultrasonic sound can be heard by dogs, but is silent to humans)

3. Startled by the high-pitched sound, the dog should stop barking, it will associate its bark with this unpleasant noise.

4. When the dog stops barking, the ultrasonic sound also stops.

▲Description:

1. This bark control device was built to offer pet owners more professional ways to train their pets.

2. Outdoor Bark Control is automatically activated when it detects barks up to 50 feet away. It then emits ultrasonic sound.

3. On hearing this high-pitched sound, the dog immediately stops barking, as it will associate its bark with this unpleasant noise. When the dog stops barking, the ultrasonic sound also stops.

4. Some dogs don't like the s Features & details * 【3 Adjustable Frequency】-The Dog Barking Deterrent Device has 3 adjustable levels (15FT-50FT). Different dogs may be sensitive to ultrasound in different frequency bands. Please turn the knob to test different frequency bands for best results. If you or your neighbor's dog barks too excitedly, put it in the right spot, and you'll have a quiet resting environment. * 【Easy to Use】Anti Barking Device has a built-in pickup that can detect the dog's barking within 50 feet and automatically emits ultrasonic that the dog can hear. Once the dog stops barking, the device automatically stops. Compared with the traditional dog training device, it completely frees your hands. Automatic and effective training your dog to stop excessive and noisy barking. * 【Safer for Dog & People】- Ultrasound will not cause any interference or harm to the human body. The ultrasonic frequency emitted by the ultrasonic barking controller is within the average hearing range of a dog. Other family members or neighbors will not worry about being affected. It does not cause major punishment to the dog, it emits an ultrasound that only dogs can hear to get its attention. * 【Energy Saving】Operates 9-Volt batteries (not included), average battery life 5-6 months depending on use. It can be started with a 9V battery (not included). Keep it at arm length, then whistle into the microphone. The device will beep and the LED will flash green. * 【Durable & Waterproof】- Dog Barking Control Device has IPX4 waterproof, the case is UV resistant and not easy to fade. Designed to be easily hung/installed on trees, walls or fence posts to stop any dog barking (within range), indoors, outdoors, etc. anywhere. The dog deterrent device is not suitable for aggressive dogs and hearing impaired dogs.