Anti Barking Device Ultrasonic Sonic Bark Deterrent with 50 FT Range - Safe Outdoor/Indoor Dog Bark Control Device - Bark Box and Neighbors Dog Silencer for Small, Medium, and Large Dogs

Multi-functional design: this anti-barking device is compact in shape and beautifully designed to hang from trees, indoor or outdoor walls or fence posts to stop any dog barking within range. It also comes with four buttons, including a test button, an off button and three level buttons, making it very easy to use.
Effective Barking Control: Our ultrasonic dog anti-barking device helps you and your neighbors get rid of noise by emitting 20KHz-25KHz ultrasonic waves to correct your dog's bad behavior and effectively prevent your neighbor's dog from barking. No need to use a collar, suitable for all breeds and sizes of dogs, safe and practical.
Wide effective range: This bark control device has multiple settings and a multi-directional microphone to capture dogs in any direction. It has three modes including low range (up to 15 feet), medium range (up to 30 feet) and high range (up to 50 feet) to effectively control your dog's barking within a 50-foot range.
Small and safe: This ultrasonic anti-barking device is small and safe and has been tested and proven to be harmless to humans, animals and plants. It emits a sound that is effective for dogs but cannot be heard by humans. It is safe for small, medium and large dogs.
Reliable and durable: This compact dog anti-barking device can be easily hung on a tree, wall or fence post, or placed in your garden or next to your dog's kennel. It is reliable and durable enough to work outdoors, even in windy and rainy conditions.