Excessive barking from our dog is a big trouble for us. Sometimes we feel exhausted about the constant barking and yapping from our love dog, because we can't find an effective way to stop it. Now a harmless and effective no bark collar appeared, save us from the excessive barking. We won't need worry about dog's barking will disturb us and our neighbors any more, and at the same time, it won't hurt our dog. Just enjoy the fun staying with our dog, no more worries. Smart Barking Vibration Detector With Intelligent barking vibration detection instead of sound detection chin, only the barking of your dog can trigger the collar. Even other dogs that are barking nearby can't trigger it.It is harmless, friendly and effectively. Adjustable Vibration, Shock And Sensitivity Grades -0-7 Adjustable Vibration: 0 mode means it won't vibrate when the mode is ‘0' -0-7 Adjustable Sock: 0 mode means it won't shock when the mode is'0' -1-7 Adjustable Sensitivity: Level 1 is the Least sensitive,and level 7 is the most sensitive.you can adjust the sensitivity base on the actual. About our Bark Collar Dogs are our family and spend his entire life with us, we are going through lots of unforgettable time together. However, sometimes it is annoying while dogs may bark when someone passes by your door during the night.That's why we offer this NO BARK COLLAR, it contains 3 training modes - beep, vibration, and a gentle static shock, which can protect your dogs from continuously barking and give your family a peaceful night. Advanced Detection Technology These bark control collars are engineered with the most advanced technology and safety features on the market, only your dogs' barking can cause corrections, which means there will be no effect while other dogs barking. Every function has different levels, adjust the sensitivity of bark collar from the lowest gear, then choose the function and level that are most suitable for your pet according to its reaction.