Ideal for anti barking training, safer than bark collar, more effective than a dog whistle. Say goodbye to constant noise and enjoy a barks no more experience with your dog. 6-in-1 Safe & Humane Training Modes:Our dog bark deterrent device features dual ultrasonic frequencies (fixed 25kHz and variable 20-30kHz), combining 4 ultrasonic modes plus an audible beep and LED flashlight for versatile training.
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