If you have a dog that barks without reason, you may want to invested in a bark collar.  Bark collars can be used to train an animal out of barking, but it needs to be done properly.  If trained improperly, your dog will learn not to bark when the collar is applied but have no restraint when it is off.

Preparation
Before you start training, make sure the collar is fully charged.  Have your dog wear the collar for a while without activating the unit.  That way he won’t associate the collar with the training.  After a couple of weeks, you can turn on the collar.  Citronella based collars are considered more effective than electrical ones, by the way.

Training
The collar sits below your dog’s head, on his throat.  The vibrations of barking will activate the unit and after a preset time will cause a warning noise to sound.  If your dog doesn’t stop barking, the collar will administer the correction.  This usually stops the dog immediately.  The collar resets and awaits its next use.

Appropriate Timing
No dog should be subjected to bark collars for long periods of time.  The maximum recommended time in a collar is 8 hours.  If you feel that placing and removing the collar is reducing the effectiveness of training than consider purchasing a second unit so you can leave one on your pet at all times, without it being active.  Your dog won’t know which is which and the training should hold.

You can find many barking collars available online and after reading reviews and checking out prices, you can pick one that is appropriate for your dog and your end goal of no more barking.