General description This anti-bark collar is designed specifically for small to medium dogs weighing between 5-15 lbs. It features a powerful adjustable vibration function that ensures safety without the use of electric shocks or sharp teeth, making it a humane option for training your puppy. The collar is rechargeable, taking only 1-2 hours to charge, and offers a working time of approximately 15 days. With an IP67 waterproof rating, it is suitable for outdoor use in all weather conditions. Technical specifications Weight capacity: 5-15 lbs Neck size compatibility: 6 to 20 inches Charging time: 1-2 hours Working time: about 15 days Waterproof rating: IP67 Adjustable sensitivity levels: 5 Usage The collar is equipped with intelligent sensors and chips that detect barking at specific frequencies and decibels, preventing false triggers from other sounds or dogs. It is lightweight and designed for comfort, making it ideal for small breeds such as Chihuahuas.