'Barks no more' - helps in controlling dogs!

My dear puppy - my dog! So far it was a puppy, it was fun. Its barking used to be music to ears. It went on growing with the passage of time. In 4 months it changed into a fully grown-up dog. Now its barking was also loud. I felt happy. Soon I realized that my dog used to bark at everybody who used to visit us. Usually domesticated dogs do not bite but its barking itself is very fearful. I used to tell my friends that it would noy bite but with its size everybody visiting us used to cut-down on their visit to our place. I talked to 2-3 dog-trainers but their fees for training was too much. Meanwhile, one of my friends informed me about a gadget called ‘Barks no more’. It was developed by an experienced Dog-trainer who had been in ’Armed-services’ for a long time. Basically the Barks No More is a device to help dogs and cats get rid of bad behaviors by playing a super high pitched whistle sound that only they can hear. It doesn’t hurt them at all but it will get them to stop their behavior. What you’ll want to do is wait for the behavior you want to stop, like: begging for food, non-stop barking at the door bell, barking late at night, destroying your couch cushions, or whatever annoying behavior needs to stop. When your dog starts doing the bad behavior, physically get in between them and whatever they’re doing wrong (couch, door, stranger, etc.) point the device at them and hold the button. It will start playing a whistle sound that will get them to back away from it. After that just let go of the button and give your dog some kind of reward (treat, head scratches, etc.) so they remember good things happen when they aren’t being bad. If your dog is being extra aggressive or tough, there's also a flashlight on it you can point at them that will make it even more effective. Plus, you can use the flashlight if you go on any late night walks. On top of that, if there’s someone else's dog that is being aggressive towards you, you can use it to keep them away. And the Barks No More has a loud alarm if things get too crazy and you need help. Now I am very relaxed with my visiting friends.