Dog collars are no longer only used for the identification of the dog in case it gets lost. There are electrical collars that you can use to train dogs and contain them within a perimeter. These collars are now sophisticated and may even include a GPS system that the owner can use to track the dog’s whereabouts through a computer. The dog collar delivers an electric shock with varying degrees of intensity. The first training collars had a very high voltage shock, but modern collars are mostly of a low intensity shock. The shock can be very low and feels like mild static electricity.
Training collars are used mainly for training, as the name suggests. The collar is controlled by the trainer remotely. Sound and vibration can be used together with the shock in order to make the training more effective. The sound or vibration is used to warn the dog before the shock is activated. For example, before a dog crosses a perimeter, a warning sound warns the dog, if it fails to obey the shock effect of the collar is activated. You can complement this training method with a reward system. This will make the dog feel loved and appreciated.

Dog training is a skill worth learning for any dog owner. Dog training collars should be used by someone who has some knowledge on them to avoid misuse. Professional training is important but is not a must. You do not have to be professionally trained, you can buy a DVD or find a website online that will give you all the information you need to have when using a dog collar.
Another reason for buying training collars, is to contain the dog within a given perimeter. If you do not have a perimeter fence, you can contain the dog using a dog collar. In order to use the training collar you need to lay down a wire around the area the dog should remain. Some training collars use sound or vibration to warn the dog to stay within its perimeter. The dog needs to be trained to associate the sound or the vibration with the shock. That means the dog should know that an electric shock could come after the warning. The sound is important as it prevents the dog from being shocked too often.

There are dog collars that come with additional features. If you have several dogs you can get one that is suitable for multiple dogs. This means one remote control can have settings to control a number of dogs. When you buy another dog, you only need to buy a new dog collar for it.
A few brands that get some of the best dog training collars reviews incude Innotek dog training colars, Tri Tronics, Dogtra and Martingale. Models vary depending on whether they're for large dogs, small dogs, hunting dogs or sport dogs. These electric or electronic devices are wireless and work at an impressive distance from the receiver.
There are training collars that are used for more difficult to control dogs. They come with a number of features. It is advisable to get professional training before you try to train a difficult dog with a training collar.
All these types of collars can be found on online stores. Online stores allow you to browse through an unlimited number of options at the comfort of your home.