Say goodbye to constant barking and hello to calm, obedient behavior with the Silent Tail Tech Ultrasonic Dog Trainer. This powerful, humane training tool combines three high-frequency sonic emitters and an integrated LED flashlight to stop unwanted behaviors like barking, chewing, jumping, biting, and chasing without the need for shocks or sprays. Whether you're training your own dog or dealing with noisy neighbors, this handheld device offers 4 training modes: Beep Mode – For mild corrections or attention-getting Ultrasonic Mode – Emits a high-frequency sound only dogs can hear Ultrasonic + Flashlight Mode – Combines sound with visual deterrent LED Flashlight Mode – Great for walks at night To avoid your dog adapting to one sound, simply toggle between two ultrasonic frequencies (25kHz and 25–30kHz) for consistent results. The device has a wide effective range, allowing you to control behavior from a distance. With USB-C fast charging, a long-lasting battery, and a compact pocket-size design, this anti-bark tool is perfect for use at home, on walks, or at the dog park.