【Very Safe】: This automatic barking dog collar does not harm the dog and does not represent dog abuse. The contact column is made of silicone, which is flexible and relieves the dog’s skin, which increases comfort. This electric dog bark collar can better teach your dog not to bark so that you can get rid of any problems caused by dog barking. 【Adjustable Mode】: The dog collar has 3 modes, 7 levels of vibration can be set, all these modes effectively prevent dogs from barking without hurting them. You can choose the most suitable way to train your dog. This dog collar can be charged via USB. takes 1 to 1.5 hours to fully charge, can be used continuously for about 14 days when fully charged. 【Adjustable Collar】: The electric dog collar has a circumference of 7.4-23.5 inches (18.84-59.66cm) and is suitable for small dogs, medium, large dogs and other dogs serving weighing 7-54 kg. The anti-bark collar is made of nylon and is very durable. The anti-bark collar is reflective and is