Anti-bark collar for small dogs 5-15 lbs, with powerful adjustable vibration function, no electric shock or sharp teeth, will not harm the puppy, safer to use Rechargeable anti-bark collar, charging only takes 1-2 hours, working time is about 15 days, IP67 waterproof dog collar can be used outdoors in all weather Equipped with intelligent sensors and chips, this anti-bark collar will detect dogs barking at specific frequencies and decibels and will no longer be falsely triggered by other sounds or other dogs Anti-bark collar for dogs of all sizes, it is a lightweight anti-bark collar for small dogs 5-15 lbs with neck sizes from 6 to 20 inches, perfect as a bark collar for small dogs like chihuahuas The dog bark collar has 5 sensitivity levels and can be easily adjusted according to the ambient noise