【8-Level Sensitivity for Optimal Dog Training】This anti-bark collar allows for 8-level sensitivity adjustment to suit your dog's barking habits. You can adjust the sensitivity according to your dog's size and personality, preventing false triggers from other dogs or surrounding noises. It can be used with peace of mind, without stressing your pet. 【Accurate Bark Detection with the Latest AI Chip】The latest AI chip quickly detects barking within 0.01 seconds. It doesn't react to other sounds or other dogs' barking, so it only activates when necessary. It also detects the movement of the pet's vocal cords, effectively preventing unnecessary barking. 【Safe Design that Eliminates Ultrasonic】This product eliminates the ultrasonic function used by many dog anti-barking devices, offering a design that is gentle on dogs' nerves. With simple operation using sound and vibration, it provides gentle training that minimizes the burden on your pet. 【Flexible Training with 4 Modes】Equipped with 4 modes: beep, vibration, beep + vibration, and beep + vibration + microcurrent. You can set it according to your pet's reaction, allowing for stress-free training. It achieves safe and effective training with sound and vibration alone. 【IP67 Waterproof & Reliable 1-Year Japanese Support Warranty】IP67 waterproof specification allows for use on rainy days and outdoors without any problems. Thank you for viewing.