2 training modes and 4 sensitivity levels: “sound + vibration” and “sound + vibration + static shock”. This collar is very convenient for people who have no information about dog training. Just select the sensitivity level (4 most sensitive and 1 least sensitive) to train the dog. Anti-interference: This collar is equipped with an intelligent sensor and a chip that detects the barking of the dog wearing it. Sensors filter out all noise, dogs barking next to your dog won’t trigger the collar.** The LED indicator lets you know the level, active mode and battery status. Protection mode: Smart anti-bark collar that temporarily deactivates to prevent pet injury if the collar is triggered more than 7 times within a minute. In this mode, the collar will stop working for 2 minutes. **Suitable for long and short haired dogs: The collar comes with two different contact points, depending on the size of the dog’s hair. Rechargeable battery and IP67 water resistant: The built-in rechargeable
