【Anti Bark Dog Collar with 2 Modes】 - Safety 2 humanized working modes that will not harm your dog. When barking is detected, a beep or beep and vibration will sound. The anti bark collar will keep working to reach the next correction level until the dog stops barking. Depending on your pet's nature and behavior, choose the trigger sensitivity from 1 to 7 via the power button to prevent the dog from barking. 【Smart Anti Bark Collar for Dogs】 - A smart anti-barking device that can effectively and safely filter out other unrelated sounds and prevent false triggers. Only your dog's barking can trigger the anti bark collar. You can do the test by blowing or shouting into the sensor microphone on the back of the receiver. 【Rechargeable and Waterproof Anti Bark Collar for Dogs】 - The anti bark collar has a built-in USB rechargeable battery. It can be fully charged in about 2-3 hours and offers 15 days of use. IP67 waterproof design and suitable for swimming with dogs in summer and taking a