General description Anti-bark collars are designed to discourage your dog from barking during training and improve their behavior without the need for physical or verbal punishment. This collar is suitable for large, medium, and small dogs weighing between 4 to 50 kg. It offers multiple modes including shock and non-shock options, as well as tone + vibration and tone + vibration + static pulse. Simply press the M button to change modes and enjoy peace of mind. Technical specifications Weight capacity: 4 to 50 kg Waterproof rating: IP67 Battery protection: Safe and stable protection against overcharging and deep discharge Automatic power saving mode Installation Place the collar around your dog's neck. Usage The collar activates when the dog's barking and throat vibrations reach a certain frequency detected by the sensor. The sensor emits a tone followed by a vibration or electrostatic shock to correct barking behavior. Dogs usually need 3 to 5 days to get used to wearing the collar.