The Innotek Citronella Anti-Bark Spray Collar is approved by veterinarians and behavioral experts. Clinical studies conducted by the College of Veterinary medicine of Cornell University, (as published in the Journal of the American Hospital Association), have proven that the Citronella Bark Collar is TWICE effective as Shock Collars!
Sonic dog barking collars are virtually ineffective compared to sprays. Each bark triggers a harmless spray that conditions the dog to stop barking.