1. Effective Dog Trainer: Indoor and Outdoor Bark Stopper with frequency sound waves. This harmless antibark device is safe, effective, and inaudible to humans, ensuring a peaceful environment without harming animals. 2. MultiPurpose Training ToolAuto Stop Dog Barking Device Equip yourself with this powerful ultrasonic tool designed to train your beloved pets and effectively deter unfriendly dogs. It features a frequency flashing light to enhance effectiveness, reaching up to 25 meters. 3. LongLasting Training: Automatic Stop Dog Barking Device. Enjoy control over your dog's barking with our compact, lightweight device, offering up to 60 days of standby time. Designed for easy carrying and userfriendly operation, it's your outdoor training companion. 4. Behavioral Aid CompanionUltrasonic AntiBark Device With a single press, our device emits ultrasonic waves and bright LEDs to deter barking and correct behavior. It also doubles as an LED flashlight, lighting your way home and ensuring safe walks.