SHIJIN Anti Barking Device for Dogs, Bark Box Rechargeable Dog Bark Deterrent with Variable Ultra Frequency/6 Modes/IP65 Waterproof Dog Silencer Stop Neighbors‘ Dogs from Barking Up to 75ft Plastic Training Aid For Dog  (Grey)

Get rid of annoying dog barks easily! This ultrasonic bark silencer works indoors and outdoors, effectively curbing excessive barking effortlessly to create a quiet living environment and train well-behaved pets. Equipped with dual ultrasonic emitters and advanced frequency conversion technology, it is 188% more effective than traditional anti-bark collars with stronger power and longer sensing distance, effectively stopping barks from your own or neighboring dogs. Adopting multi-emitter design, it reaches a maximum effective range of 75 feet for wide coverage. Suitable for all dog breeds aged 6 months to 8 years old, it efficiently solves continuous barking troubles. Three adjustable modes are available: Low 25ft, Medium 50ft and High 75ft. It supports switchable dual ultrasonic frequencies to avoid dog adaptation. Auto sensing design realizes automatic bark control, ideal for yards, parks and other scenes. Built-in 2000mAh rechargeable battery only needs 3 hours full charging, equipped with Type-C USB port for easy fast charging and long service life. Featured with IP65 waterproof grade, it works stably in all kinds of weather. Adopting pet-friendly harmless physical sonic design, it safely corrects bad barking habits without hurting dogs. Lightweight and portable, it can be hung on trees, fences, tables and dog houses. Easy to operate, just fully charge before use, it gently reminds dogs to keep quiet with zero harm. Kind Tips: It does not work for hearing-impaired dogs. Do not use it on puppies under 6 months old to avoid affecting their hearing development. Totally safe for humans and pets. Only faint beep can be heard by people, while core ultrasonic waves are inaudible to human ears. Usually dogs need about two weeks to form good quiet habits. Start enjoying peaceful time with this ultrasonic anti-bark device. Please observe your dog closely in early use. For long-term training effect, keep using it with verbal instructions and positive encouragement.