LOVATIC Dog Bark Collar - No Shock Vibration and Sound Humane Training Device for Small Medium Large Dogs - 7 Levels Sensitivity Adjustment - Best No Bark Control Collar HUMANE, HARMLESS, EFFECTIVE: This dog bark collar effectively reduces your dogs barking without causing him/her any pain or distress. Using a progressive high frequency ultrasonic sound and vibration painless stimulus with 7 levels sensitivity adjustment and sleep mode, it helps to control your dogs barking and train your dog in a painless way. This will help your furry friend understand quickly that he/she just needs to stop barking to get rid of the irritating sound and vibration alike INTELLIGENT CHIP AND UPGRADE DESIGN VERSION: After using dog bark collar for small medium and large dogs, we have upgraded chip with 7 adjustable sensitive levels which can be customized for any breed of dogs. Only your dog sound will trigger the smart sensors which are not affected by another dogs barking. Moreover, Using the sleep mode allows the collar to automatically stop working to SAVE BATTERY lifetime when it is not needed to use FLEXIBLE SIZES FOR YOUR FURRY BABY: Small, Medium or Large dog; Indoor or Outdoor; Stubborn breed; Labrador Retriever German Shepherd Bulldog Beagle Terrier Poodle or Chihuahua; No problem. The bark collar is deal for almost any size dogs from 15lbs to 110lbs, but it also takes effect on the big buddies up to 150lbs. Besides, the strap is made from durable materials, so your dog will hardly notice it as well as assure maximum comfort for your dogs WATERPROOF LED CLIP ON PET SAFETY LIGHT: Lovatic offers each purchase a Waterproof Spot Dog Light which is responsible for increasing your dog's safety and visibility. With the design of 3 flashing modes: fast, steady and slow and included battery, the Bark Control Collar and the Spot Light attached will be perfect for your beloved dog TIPS FOR USE: To get the best results of using the Dog bark collar, we suggest customers choosing the most suitable adjustment for your dogs, not too tight or too loose. Moreover, do not leave the collar on the dog for more than 6 to 10 hours, check the battery weekly, keep the collar dry and take notice if the dog keeps barking because of thieves, dangers or natural disasters