【Perfect Fit for All Dogs】Designed for small, medium and large dogs, our lightweight bark collar feature an adjustable strap that grows with your dog. Soft reflective nylon ensures a comfortable fit, and double reflective stitching for increased visibility, ensuring safer nighttime walks. 【4 Humane Training Modes】You can choose beep, vibration or a combination of both, and for more stubborn dogs, there is a shock mode. Designed for gradual learning, the system starts with a gentle reminder and escalates only when needed, without causing stress or injury. 5 levels of adjustable sensitivity for a variety of environments. 【Smart AI Bark Detection& Waterproof】Say goodbye to false triggers! Our advanced AI chip detects only real barking, ignoring ambient noise or other pets. Additionally, this shock collar for dogs is IP67 waterproof and can withstand rain, snow and mud splashes. 【20 Days Battery Life】Spend less time charging and more time training! The fast-charging feature quickly powers up the anti barking device for dogs, and the 20-day standby time ensures it's always ready to go. The bright LED display shows battery level and settings at a glance, and the sleek design adds style to your dog. 【Additional Protect Mode】Our innovative protection mode automatically pauses the dog training collar for 30 seconds after 7 consecutive triggers to prevent over-stimulation. This user-friendly feature ensures stress-free training while promoting positive behavior. bark collar dog bark collar bark collar for large dog bark collar for medium dogs bark collar for small dogs 5-15lbs bark collars dog training collar dog shock collar anti barking device for dogs dog bark deterrent devices Anti barking device no bark collars for dogs anti barking collar for dogs dog barking control devices dog barking silencer vibration collar for dogs