This battery-operated device uses ultrasound to teach your dog not to bark. You can easily stop your dog barking using this collar.

• A sensor detects whenever the dog barks, and the Bark Trainer then emits a series of ultrasonic whistles, only audible to the dog.
• The dog will usually learn to associate barking with the unpleasant noise, which should reduce or even eliminate ‘nuisance’ barking.
• 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, supplied).
• Average battery-life 30-50 days