Sûr Very Safe】: This automatic dog bark 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 skin of the dog, making it more comfortable to wear.This electric dog bark collar can better train the dog not to bark, so you can get rid of the problems caused by the bark. your dog. Br> 【Adjustable Mode】: The dog training collar has 3 modes, 7 vibration levels can be adjusted. All these modes effectively prevent barking of dogs without hurting them. You can choose the most suitable mode for training your dog. This dog bark collar can be charged via USB. Full charging takes 1 to 1.5 hours and can be used continuously for about 14 days when fully charged. Br> 【Adjustable Collar】: The electric dog collar has a circumference of 18.84-59.66 cm (7.4-23.5 inch) and is suitable for small dogs, medium, large dogs and other companion dogs with a weight of 7-54 kg. The anti-bark collar is made of nylon and is very