Dog bark collar has intelligent barking detection, which can identify your dog's unique barking and filter out other sounds. Dog barking collar provides 8 sensitivity levels, suitable for all possible barking volumes, and different environments, you can set the right sensitivity for your pet dog. Soft, durable and reflective nylon strap with reflective strip for added security for dogs in dark environments Collar strap is adjustable for neck sizes up to 24'. Comes with a soft silicone cover to protect your pet's skin.