【3 Selectable Modes, Effective Bark Control】The electric dog bark control collar has 3 types of stimulation: beep/vibration/shock, allowing you to choose the right stimulation for your dog. You can adjust 7 levels of sensitivity according to the size of the dog. The automatic anti-bark collar operates from a slight stimulus and automatically maintains or increases the stimulus level depending on the dog’s response.【Replaceable Conductive Posts & Adjustable Straps】This anti-bark collar is suitable for all dogs. Thanks to the 2 pairs of conductive rods, this anti-bark collar is suitable for both long-haired and short-haired dogs. The long-haired, bark-collared, footballer-like dog is flat on the side near the neck, lightweight and therefore comfortable to wear. Adjustable shoulder straps for small/medium/large dogs, neck circumference 0-18cm.【Smart chip with self-protection mode】With the smart chip filtering noise and barking from other dogs, your dog won’t be disturbed by false