JANNIK Barking Control Collar for Dogs - Humane Stop Barking Training Collar - Vibration and Sound - No Shock Collar - Safe for Dogs and Human with Water Resistance. ADVANCE MICROPROCESSOR CONTROL: with 6 levels of sensitivity adjustment, sound and vibration will only be triggered by your dog. The new sensor will make you dog feel as comfortable as possible. EFFECTIVE FROM 5 LBS TO 150 LBS DOGS: The collar which is easy to adjust is made from nylon strap with high quality. This makes JANNIX no bark collar fit for dogs of all sizes, from the small 5 lbs dogs to the great 150 lbs ones. HUMANE, PAINLESS TONE AND VIBRATION: with the continuous beeping sound and the vibration, when your dog barks, he/she will soon learn that he/she has to stop barking in order to stop the unpleasant noise and the vibration WATER RESISTANT LED CLIP: JANNIK would love to give buyers a Spot Dog Light which provides more safety and visibility at night for your canine friend. The Bark Control Collar and the Led Clip will be the best for your beloved dog. TIPS FOR USERS: In order to receive the best results from JANNIK collar, you should check the battery weekly and be vigilant because sometimes your dog's barking is due to thieves, dangers or even natural disasters. Single Product Weight:70g Belt Material: Nylon Diameter Range: 3-18CM Pls choose the most appropriate mode and level for your dog according to the instruction or the opinion from certified specialist, because we value the dog safety in priority as you are. Do not attempt to use this product for correcting dogs whose behaviors are aggressive to people or other animals. The No Bark Collar must only be used on healthy dogs.This collar is not intended for dogs weighing less than 15 pounds or under 6 months old.Take your dog to a veterinarian before use it if he is not in good health. Wearing the collar too tightly may cause skin damage. and pls check the collar and adjust it to the correct length,the prongs MUST be against your dog's skin to work. Avoid wearing the collar on the dog more than 12 hours per day.If possible, re-position the collar every 1 to 2 hours. Check the collar to prevent excessive pressure and pls never bind a dog rope to the collar, because it will cause excessive pressure on the contact area. Wash your dog neck and the contact area of the collar weekly with a damp cloth. Examine the area exposed to the collar daily, lest rash or sore appears on your dog. Turn on the power; Press vibration/Shock button to select the mode. Continuously press the mode button to adjust to the proper level (1 to 7). Adjust the sensitivity level to 7 for test, and choose appropriate sensitvity grade for your dog in actual use. Blowing the product, the product will first sound and vibrate or shock then. After the test, you can wear the collar on your dog for training.