🐕【Automatic Anti Barking & Protection Mode】The bark collar for large dog is full-automatic. Buy it home, turn it on, and put it on your dog's neck. All annoying barking at night or after you leave home will disappear. Your family and neighbors will have a barking noise-free environment.DINJOO dog bark collar has a safety-off feature that will temporarily stop working for 1 minute if it triggers 6 times. Press any button and will back to work | 🐕【4 Humanized,Effective,Safe Training Modes】 DINJOO bark collar for medium dogs come with 4 working modes and 8 Adjustable Sensitivity.No shock mode: beep, vibration, beep+vibration; Shock mode: beep+vibration+shock, the bark collars provide the most suitable training method for your dog's barking. 1-8 Adjustable sensitivity let you use a progressive training function. This feature makes Anti bark collar incredibly useful to provide positive reinforcement for good behavior | 🐕【Upgraded Technology, No More False Triggering】 smart bark collar for small dogs adopts advanced smart dog bark recognition chip and motion detection technology. At 1-7 sensitivity, it is only activated when both vocal cord movement and barking are detected. At 8 sensitivity, it is activated when the dog's barking is detected. This technology safely and effectively filter other dog's barking, preventing false triggering and protecting your dog from unnecessary punishment | 🐕【Quick Charging and Long Lasting】 With USB charging, DINJOO no bark collars for dogs charge about 2 hours and can last up to 15 days.DINJOO dog bark collar use an intuitive large LED color interface, which displays richer content and has a strong sense of technology. The color screen displays the power capacity and low battery reminder to provide convenient use | 🐕【Comfortable for all sizes of Dogs】 DINJOO No Barking collar measures 27 inches. This small dog bark collar strap, made of skin-friendly and durable nylon, fits dogs over 8-120lbs with neck sizes 6-27.5 inches.DINJOO dog bark collar for large dog, medium dogs,small dogs. With IP67 waterproof, your dogs will enjoy bathing, swimming, chasing toys around a pool or playing in the rain