Come and see our amazing products. There are 2 modes of bark stopper. In 96% of cases, the 7 safe stages of sound buzzing and vibration help to reduce and eliminate dog barking through automatic execution. Automatically switch between beep and vibration according to the amount of barking of the dog, and it will increase after each barking. The rechargeable version of the anti-bark collar uses 1 battery for approximately 14 days. Fully charge within 3 hours. Action collars without remote control work in automatic mode. The combination of sound and vibration can effectively and safely stop barking. In the first bark, there is only one sound signal, and subsequent barking vibrations are added to the sound signal. This function is very useful when you are not at home and the dog is at home alone. Suitable for small, medium and Pls confirm with us about the packing info, stock color and exact production time before placing your order.