GENTLE YET EFFECTIVE SONIC TECHNOLOGY:Our ultrasonic dog bark deterrent uses safe, dog-friendly sound waves to curb excessive barking and destructive chewing without harming your pet. Dog bark deterrent devices are specially tuned to your dogs hearing range, delivering a harmless but effective correction, inaudible to humans and other animals, for a peaceful home. 3 ADJUSTABLE MODES & 50 FOOT RANGE: Ultrasonic dog bark deterrent, customize barking control with three precision modes tailored to your dogs behavior, from gentle reminders to stronger deterrents. Dog barking silencer with a powerful 50 ft range, this device works effortlessly in both large yards and cozy spaces, ensuring quiet no matter where your pup roams. WEATHERPROOF & EASY TO INSTALL: Designed with an IP65 waterproof shell, the Dog barking deterrent device stopper withstands rain, snow, and harsh outdoor conditions. Easily mount it on fences, walls, or trees, or place it near kennels, for instance, for hassle-free barking control indoors or outside. HANDS-FREE RECHARGEABLE OPERATION: Skip bulky collars, whistles, and handheld devices; our dog bark deterrent suppressor works automatically with a simple switch flip. The built-in 2000mAh battery lasts up to 30 days per charge (USB-powered) for uninterrupted use, saving you time and frustration. WORKS FOR MOST DOG BREEDS & SIZES: This dog bark stopper is safe and effective for dogs of all types and sizes. This barking dog deterrent effectively reduces nuisance barking by targeting canine brain waves. Enjoy restful nights and neighbor-friendly quiet, though note its not ideal for hearing-impaired senior dogs or highly trained obedience pups.