Oternal® Electronic No Bark Control Dog Collar with 7 Levels Button Adjustable Sensitivity Control, 7 Correction Levels, Black Nylon Collar, An High Quality and Effective Pet Training Device for 8-120 Pounds Dog （Such as Labrador, Retriever, Shepherd, Dachshund, Beagle, etc.），An Effective Device Keeping a Quiet Environment at Home/Indoor

Key features

• High-quality Electronic Anti-Bark Dog Collar and Sends harmless warning beep and shock to the dog whenever it barks
• 7 sensitivity levels (1-7) adjustable for the different size of dogs barking through the "+" /"-" button
• Lightweight receiver, replaceable 6-volt Battery
• Effective on a 8-120pounds dog
• Note: Don't encourage you to use it for puppy, especially below 8 lbs, but you maybe can have a try carefully. If the dog is too small, you must use it under the guidance of the master to avoid unnecessary harm to your dog, because the stimulation for the puppy will be a little strong