2 in 1 Dog Training Collar Automatic Anti Bark Control with Remote Rechargeable and Waterproof for 2 dogs

As described, a bark stopper can vibrate or make sounds to stop a dog barking.My dog, who always screams in the middle of the night and is constantly woken up by him, has a poor quality of sleep, so I bought this barker to correct his behavior.Now that the results are in, the dogs still need time to get used to it.