Anti-barking device. Improved dog bark control up to 50 feet. 3 adjustable sensitivity/frequency levels. Rechargeable ultrasonic dog bark stopper

[Improved Dog Training and Behavior Aid Tool]: Using the latest ultrasonic technology, the anti-barking device automatically emits a high-pitched tone that only dogs can hear. It automatically detects a dog's bark, and once the dog stops barking, the ultrasonic bark controller will automatically cease emitting ultrasonic waves. [Anti-barking for all sizes and breeds]: The anti-barking device has four sensitivity levels to choose from. You can use the most suitable equipment to define the environment, select the detection distance, and adjust the sensitivity to achieve your goal. Level 1 is the least sensitive, and level 4 is the most sensitive. [Safe for dogs and people]: The dog bark control device has no electric shock, no irritating odor, and no beeping. It is safe for animals and safe for humans. The anti-barking device will automatically emit ultrasonic waves to prevent dogs from barking, which is perfect when you leave your dog alone while you're away. Dogs stay calm, creating a peaceful environment for you, your family, and your neighbors. If the dog has difficulty hearing or is aggressive, the device may not work as intended. [USB Rechargeable Dog Bark Control]: Rechargeable anti-barking device with an indicator light for effortless use. A 5-hour charge lasts 30 days, saving you the hassle and endless expense of batteries. No need to install batteries; it works right out of the box. (It is recommended to fully charge before use for best results.) [Stop Dog Barking Indoors & Outdoors]: Tested outdoors, the anti-barking device works best within 32 feet, completely freeing up your hands compared to traditional dog trainers. You can easily train your dog's behavior by turning a knob. Ideal for preventing neighbors and stray dogs from barking outside. [IP45 Waterproof Rating]: The IP45 waterproof rating means you don't have to worry about weather changes or water intrusion caused by other factors.