Adjustable Ultrasonic Dog Trainer – World’s First Variable Frequency Pet Behavior Corrector with 10 Level Ultra Sound, 18 Dog Whistles, Anti-Bark Flashlight, Humane Dog Deterrent (Orange)

Customers find the ultrasonic dog trainer effective, with one noting it works up to 50 feet. The device stops barking instantly with harmless sound waves and helps dogs respond well without stress, making training sessions smoother. Customers appreciate its ease of use, built-in flashlight feature, and humane approach, with one mentioning it keeps squirrels and other animals away.

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