It is important to first assess your dog’s reaction to the BarkCollar before choosing a correction setting. Turning on the BarkCollar and setting it to “V” (Vibration) mode, place the BarkCollar on your pet. To indicate what setting is best for your dog you need to observe the dog barking. Look for little signals such as a head shake, ear twitch, or change in barking behavior. These signs indicate that your dog has responded to the BarkCollar and that the level of correction is appropriate. If you do not see any signs that your dog noticed the correction from the BarkCollar, you can increase the setting by one level. Never increase more than one level at a time. Repeat this process until you see a subtle sign of your dog responding to the BarkCollar.