【Anti Bark Collar with 2 Modes】- Safety 2 humanized working modes, will not cause harm to your dog. when a bark is detected, it beeps or beeps and vibrates. The anti-bark collar will continue to work to progress to the next level of correction until the dog stops barking. Depending on your pet’s nature and behavior, choose the power button trigger sensitivity from 1 to 7 to prevent the dog from barking. 【Intelligent Anti Barking Device】- A intelligent anti-jamming, which can effectively and safely filter out other unrelated sounds and prevent false triggering. Only your dog’s barking can trigger the Bark Control Collar. You can test by blowing or shouting into the sensor microphone on the back of the receiver. 【Rechargeable & Waterproof Bark Collar】- The bark collar has a built-in USB rechargeable battery. It can be fully charged in about 2-3 hours and will give you 15 days of use. IP67 waterproof design and suitable for summer dog swimming and showering. If you have any questions, do