Queenmew Dog Bark Deterrent Devices, Automatic Anti Barking Device with 4 Ultrasonic Transmitters Long Range 50FT, 3 Mode Rechargble Barking Control Devices, Effective Stop Bark Box Outdoor & Indoor

["【Ultrasonic Dog Bark Deterrent】Ultrasonic anti barking device suppressor uses safe, dog-friendly sonic waves to effectively suppress excessive barking and destructive chewing without harming your dog. PLEASE NOTE: As the dog may not like or be afraid of the small sound at the beginning of using our dog bark deterrent devices, so please allow 2 weeks for the dog to be trained.","【3 Adjustable Frequencies & 50FT】The anti barking device for dogs has built-in 4 sound transmitters to enhance the effect on dogs, Once there is a sound of pets barking, our anti barking device for dogs will turn on its function. Ultrasonic Bark Box barking control devices has 3 modes adjustable, 15-30KHz frequency for deterring dogs of different sizes and personalities. Our anti dog barking device can cover a range of 33 feet, ensuring effective coverage of a considerable area.","【Friendly to Both Humans and Dogs】Our anti-barking device is designed to create a peaceful living environment for all. It does not emit any pungent smell, electric shock or annoying beeping sound, ensuring the safety and health of dogs and humans. Ultrasonic waves are specially designed to be inaudible to humans and harmless to human ears.","【Weatherproof & Easy To Install】This dog bark deterrent devicessuppressor features an IP65 waterproof housing designed to withstand rain, snow, and harsh outdoor conditions. Anti Barking Device for Dogs can easy mount it to a fence, wall, or tree, or place it near the kennel for instant and easy barking control, both indoors and out.","【Free Hands & Reechargeable】Our anti barking device for dogs completely frees your hands compared to handheld bark deterrent and dog collar deterrent. Just a tap, our ultrasonic dog bark deterrent suppressor works automatically. The stop barking dog devices built-in 1500mAh battery lasts up to 30 days per charge (USB-powered), saving you time and hassle. (Pro tip: fully charge before first use!)"]