CMFLOWER Bark Collar 2018 New Rechargeable Ultrasonic Vibration Auto Collar ULTRASOUND / VIBRATION / SHOCK MODE & HUMANE 0-7 ADJUSTABLE LEVELS-2018 new ultrasonic dog bark collar will not disturb you when stop your dog from barking, allow you to use three modes all together 7 ADJUSTABLE SENSITIVITY & AUTOMATIC PROTECTION MODE - Choose a suitable sensitive level from 7 adjustable sensitivity for your dog to ensure the bark collar won't be triggered too many times INTELLIGENT RECOGNITION SOUND SYSTEM - Our anti barking collar sense the vibrations from your pet's vocal cords as it starts barking and make correction. IP67 waterproof, but not suit for swimming LONGER NECK STRAPS & FIT FOR ALL DOGS& RECHARGEABLE - adjustable strap fit for small, medium or large dogs, Built in battery, with USB cable, full charged within 2-3 hours and support 15-30 days use DOG ID TAG & EFFECTIVE STOP BARKING & - Come with free ID tag in case your dog lost. Our dog bark collar are made with a dog's comfort and safety first and foremost in mind