1. Antibarking for dogs: The portable antibarking ultrasonic device uses ultrasonic technology, offering a safe and humane way to quickly calm your dog, stop barking, and correct bad behavior. 2. Antibarking device for dogs: This device can be used without causing discomfort. The antibark collar emits frequency sound waves, making your dog quieter in just minutes a day while improving training effectiveness. 3. Antibarking ultrasonic device: The bark guard for dogs features an 800 mAh battery design, requiring only 1.5 hours of daily charging via TypeC. Fast charging enables continuous use for 2 hours. The intelligent display design makes it easier to use, ensuring quieter and faster training to achieve the desired barking control. 4. Portable bark guard: Compact enough to fit in your bag during walks or training sessions, allowing you to control barking on the go. Press and hold the button to emit ultrasonic waves.