5 Smart Training Modes & 5 Adjustable Sensitivity Levels with Forced Bark-Stopping: Oliry bark collar features 5 effective training modes: Beep, Vibration, Beep+Vibration, Beep+Vibration+Static, and Boost Static+Beep+Vibration — combined with 5 adjustable sensitivity levels for customized training. Gently correct unwanted barking and stop stubborn barking instantly with safe, flexible, and personalized bark control Advanced AI Chip & Instant Bark Detection: Upgraded anti barking device with smart AI technology and voiceprint recognition. The bark collar for dogs responds in just 0.01 seconds, filters out other noises, and prevents false triggering for precise and safe bark control Rechargeable & Easy-to-Use LCD Screen: This rechargeable dog bark collar charges in 2 hours and lasts up to 18 days. The clear LCD display shows battery level, sensitivity level, and working mode for hassle-free operation. Type-C charging cord prevents loss Fits Dogs of All Sizes: Adjustable bark collar fits dogs from 8 to 150 lbs with neck sizes from 8 to 25 inches. Ideal bark collar for large dogs, bark collar for medium dogs, and bark collar for small dogs — perfect for all breeds over 6 months old IP67 Waterproof & Pet-Safe Features: This bark collar for laege dog is IP67 waterproof for outdoor training in any weather. Safety mode automatically pauses after 6 continuous triggers. Removable metal prongs with silicone covers protect your dog's skin from irritation