Dog silencers like citronella collars and ultrasonic devices may reduce barking temporarily, but they don't fix the root cause. Research shows they often fail long-term and can increase stress. Training and environmental changes work better.
Ultrasonic sound at 25 kHz is the most effective, humane way to stop a barking dog instantly. Learn how these devices work, which models are best, and when they do - and don't - work.