Anti-Barking Device for Dogs - Ultrasonic Bark Control - Maximum Ultrasonic Range 10m - Barking Solution

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I purchased this item new and unused, tried it once, but my dog not only wasn't scared, but became furious and barked even more. Therefore, I haven't been able to use it since and have decided to part with it. It has been tested and is functioning properly. The box has been opened, but it is like new. Please consider purchasing only if you understand this.

??Initial defect support warranty included
?Color: Black

Product Description
[Safe and Effective Behavior Correction] Are you looking for a safe and effective way to train and correct your dog's behavior? This dog bark deterrent emits ultrasonic signals in the 20-25 kHz range, which are inaudible to humans but easily capture a dog's attention without causing any harm.
[Dual-Head Long-Range Bark Control Device] The sonar head has an effective range of 10M. This dual-head bark control device has higher output than single-head devices on the market, making it more effective. This electronic dog whistle is equipped with a 1000mAh rechargeable battery, which can be charged within 1-2 hours and typically used for about 50 days. 3x Faster Behavior Change: Chewing? Digging? Fighting? Chasing? Our bark control device is not just a bark deterrent; it utilizes the latest NPS patented technology to capture your pet's attention. Make your neighbors sleep more peacefully and transform your dog into a well-behaved companion with gentle training!
[Two Ultrasonic Modes] This ultrasonic bark control device comes with two modes and a flashlight. It helps to stop excessive barking. The Drive Mode emits high-intensity ultrasound and flashes the flashlight simultaneously to deter mischievous dogs. The Training Mode emits lower-intensity ultrasound, which can be used to correct unwanted behaviors such as fighting, biting, and excessive barking. The flashlight also has a long-light mode for walking your dog at night.
[Compact, Portable, and Easy to Use] This ultrasonic dog bark deterrent features independent, clear buttons that are easy to use, and an anti-lock key to prevent accidental triggers. Additionally, pressing the button provides a vibration effect to enhance the user experience. The device also includes a red low-power LED for outdoor use and an adjustable wrist strap. Save yourself endless hassle and conserve energy. Weighing approximately 85g, it is very light and convenient to carry, making it highly recommended.