Available for any size of dog      
IN 12Vdc, 0.6A      
1. Developed by veterinarians to be used for dogs'behavioral problem or training puppies not to bark      
2. Ideal for kennels or multiple-dog homes      
3. Come out 30-ft radius available for stopping barking    
4. No hurt from radius for human      
5. Automatically turn on when barking      
6. Two tone settings available for yr choice      
7. AC adapter(transformer) with extend wire      
8. For indoor use only