1. The dog barking deterrent device uses ultrasonic technology to intervene in dog barking. When the anti-barking device detects a dog barking, it will automatically emit soft ultrasonic waves to quiet the dog and create a quiet environment for your family and neighbors.
2. The ultrasonic dog barking deterrent is harmless to pets and completely inaudible to human ears. The anti-barking device for dogs will stop the dog from barking by automatically emitting ultrasonic waves, and once the dog stops barking, the ultrasonic barking controller will automatically stop emitting ultrasonic waves without affecting humans or other pets.
3. 3 modes: The anti-barking device has three adjustable modes, mode 1 (15kHz) is suitable for small dogs, mode 2 (20kHz): more suitable for docile dogs, mode 3 (30kHz) variable frequency, suitable for naughty or large dogs.
4. IP45 waterproof protection, can be used outdoors in various weather conditions, and can withstand the test of daily use and outdoor environment.

Parameters:
1. Input current: 40 mA
2. Power supply: USB
3. Sensor: Sound detection
4. Input voltage: 3.7 V
5. Sensor distance: up to 33 feet
6. Battery: 3.7 V 1500 mA ICR18650 NH
7. Waterproof rating: IP45
8. Ultrasonic frequency: 15 kHz-30 kHz

Specification: