Fits medium to large dogs. Collar features 1 level of high pitch tone and 1 level of shock. Collar emits 3 high pitch warning tones followed by a shock after the 3rd tone. Strap is adjustable from 8 to 24 inches long. Uses 1 6-volts battery(included) and would last up to 1 month of use.

• This collar will stop your dogs barking problems within days.
  
• 30 day limited replacement warranty and 7 day return warranty
  
• Shipping is FREE in the US