General description This rechargeable dog bark collar is designed for small, medium, and large dogs, featuring two humane modes of operation: sound and vibration. It effectively detects barking and responds with a beep or a combination of beep and vibration, helping to train your dog to stop barking. The collar adjusts its correction level automatically until the barking ceases, ensuring a tailored training experience. Technical specifications Modes: 2 (Sound and Vibration) Sensitivity Levels: 7 (Level 1 to Level 7) Neck Size Compatibility: 22-55 cm Weight Compatibility: 5-50 kg Charging Time: 2 to 3 hours Battery Life: Up to 15 days Waterproof Rating: IP67 Usage To use the collar, adjust the sensitivity level according to your dog's barking behavior using the +/- buttons. The default sensitivity level is set to 4 when powered on. Ensure the collar fits snugly around your dog's neck for optimal performance.