This battery-operated device uses High Sonic sound to teach your dog not to bark. A sensor detects whenever the dog barks, and the Bark Trainer then emits a series of high sonic whistles.
- Adjust the unit to react only to your dog's barking
- Simple to use, and harmless to your pet.
- No harmful chemicals or pesticides.
- Battery-operated (3 x LR44, not supplied).
- Average battery-life 30-50 days