Anti-barking device, improved dog bark control up to 50 feet, 3 adjustable sensitivity/frequency levels, rechargeable ultrasonic dog bark plug

General Description: The anti-barking device uses advanced ultrasonic technology to emit a high-pitched tone that only dogs can hear. It automatically detects barking and stops emitting ultrasonic waves when the dog calms down. This device is designed for all sizes and breeds of dogs, with four adjustable sensitivity levels, allowing it to be adapted to different environments. Technical Specifications: Detection Range: Up to 50 feet; Sensitivity Levels: 4 levels (1 being the least sensitive and 4 the most sensitive); USB Rechargeable: A 5-hour charge lasts up to 30 days; Waterproof Rating: IP45; Installation: No need to install batteries, works right out of the box; It is recommended to fully charge before use for best results. Use: Ideal for preventing dogs from barking indoors and outdoors; Easy to use: Train your dog's behavior by turning a knob; Particularly effective within 32 feet. Other Information: No electric shock, irritating odor, or beeping; safe for animals and humans; May not work as intended if the dog has hearing difficulties or is aggressive.