Thank you for viewing! Please read my profile before purchasing m(_ _)m ☆ Brand new, unused ☆ Free shipping ☆ Anonymous delivery #Umi's Shop 【Safe and Effective Behavior Correction】Are you looking for a safe and effective way to train your dog and correct its behavior? This dog barking deterrent emits 20-25 kHz ultrasonic signals, which are inaudible to humans but can easily attract a dog's attention without causing any harm. Unlike dog whistles, these devices can correct unwanted behaviors, stop excessive barking, and prevent dogs from eating unsafe food in a humane and gentle way. 【Three-Head High-Range Barking Deterrent】Sonar head has a 10M effective range: This dual-head barking deterrent has higher output than single-head & dual-head devices on the market, making it more effective. This electronic dog whistle is equipped with a 1200 mAh rechargeable battery, which can be charged within 1 to 2 hours and typically lasts for about 50 days. 3x faster behavior modification: Biting habit? Digger? Fighting? Chasing? Our barking deterrent is not only a barking prevention device, but also utilizes the latest NPS patent technology to attract your pet's attention. Make your neighbors happier, sleep more peacefully, and transform your dog into a well-behaved one with gentle training! 【3 Ultrasonic Modes】This ultrasonic barking deterrent has 3 modes and a flashlight to help prevent barking. The drive mode emits high-intensity ultrasound and flashes the flashlight simultaneously to drive away mischievous dogs. The training mode emits lower-intensity ultrasound, which can correct unwanted behaviors such as fighting, biting, and excessive barking. The flashlight also has a long-light mode for walking your dog at night. 【Small, Portable, and Easy to Use】This ultrasonic dog barking deterrent has independent, clear keys that are easy to use, and the anti-mislock key helps prevent accidental triggering. Also, pressing the button provides a vibration effect, enhancing the user experience. This device also includes a red low-power LED and an adjustable wristband, which are convenient for outdoor use. Saves endless trouble and energy. Weighing about 85g, it is very light and easy to carry, making it highly recommended. 【Large LCD Screen】This new product features a large LCD display. Sound level, ultrasonic level, battery indicator, and flashlight display are all clearly displayed. Easy to use and operate.