Features:

• Nano Technology - the smallest bark collar available
  
• Patented Perfect Bark technology ensures your dog's bark is the only sound that will cause the correction
  
• Automatic Correction Level adjustment called Temperament Learning
  
• Ten levels of Light-Touch correction
  
• QuickFit™ buckle provides a quick release and perfect fit every time (patent pending)
  
• Durable, waterproof Receiver Collar
  
• Two color LED for good/low battery indicators
  
• Lifetime Limited Warranty
  

Receiver Collar Specs:

• Height: 1.06"
  
• Width: 1.65"
  
• Depth: 1.42"
  
• Weight: 2.0 oz.
  
• Uses a Petsafe Battery: RFA-188
  
• Waterproof
  
• Adjustable collar for neck sizes up to 16"
  

General Info:

• 10 levels of correction
  
• Progressive correction feature increases correction to next strongest level if dog continues to bark
  
• Safety time out will shut off the correction for 3 minutes if the dog barks more than 15 times in 30 seconds
  
• Uses vibration sensor to sense for barking
  
• Not recommended to use for more than 8 hours at a time

International Buyers: This product cannot be shipped outside the USA and CANADA.