Stop All Difficulties - 2.7x Faster Behavior Modification: Chewing? Digging? Biting? Chasing? Our indoor/outdoor dog training tool, with more features than a bark control device, utilizes the latest patented NPS technology to capture your pet's attention and stop their behavior on the spot. 3x More Effective Than Bark Collars - No need to subject your beloved dog to the harshness of a bark collar. The NPS ultrasonic dog bark deterrent combines automatic stop function and ultrasonic dog whistle bark control technology to eliminate neighborhood disturbances and ensure your puppy's peaceful sleep and well-behaved life. Stop Neighboring Dogs' Barking. 1 Hour Fast Charging - 32 Hours Battery Life: The 1000mAh bark control device charges quickly and works powerfully to correct behavior without stopping, whether using dog whistle mode, strobe mode, flashlight mode, or 25 kHz ultrasonic training mode. Premium Puppy Protection - Advanced Mode When Held: With an 8-second ultrasonic auto-shutoff function and a hold function that extends the whistle and strobe, this bark collar nemesis is a dog bark deterrent that achieves the perfect balance of rapid training and protection of your puppy's sensitive hearing. Tail-Wagging Guarantee - Proven in tests to be 3.4 times more effective than a dog whistle, and the ultrasonic mode modifies behavior 2.7 times faster than the best dog obedience programs. If you are not satisfied with the results, we will buy it back. The best alternative to bark collars, dog shock collars, and bark control boxes for small, medium, and large dogs. A dog training device equipped with ultrasonic training and LED lights. - Model Name: NPS Anti-Burning Device - Functions: Ultrasonic training mode, LED light, deterrent mode - Effects: 270% effective, stops behavior 2.7 times faster