Eliminates barking and annoying behavior by emitting a piercing ultrasonic tone that pets hate, but humans can barely hear. Stop dogs from jumping, barking and biting.

Bark Free has a specially designed sound selector that lets you choose ultrasonic frequencies which can only be heard by dogs and cats, or lower sound tones audible to human ears. Bark Free uses an old age principle of "Negative Reenforcement using Sound"

The World's First Fully Water Resistant Bark Control Products Available. Water resistant construction. Adjustable stretch collar. UltraSonic & Audible selections. On/Off button. Triggers accurately by your dogs bark vibrations...

Humane way to put a stop to persistent barking. Emits a high-pitched sonic pulse that's inaudible to the human ear but highly irritating to dogs. Dogs will learn to stop barking behavior associated with harmless sound...

Bark BusterTM curbs persistent barking. Trains your (or your neighbor's) dog to stay quiet without shock collars or other painful methods. Device emits a high-pitched sonic pulse, audible only to dogs, each time they bark...

The Dog Silencer Pro is the most popular anti-barking system available today and is trusted by dog trainers, kennel owners and customers around the world. This revolutionary device works by using high-pitched sonic (audible) and ultrasonic (inaudible to humans) sounds to humanely train dogs to stop barking...

This Newest Bark-Stopping Collar Training System from GSI Is a Super Behavior Training Tool for your Favorite Dog. Simple and Extremely User Friendly, It will bring you Peace of Mind and Enjoyment. Adjustable, Ultra Safe Collar Included.

Protect yourself from dangerous dogs while cycling, walking, or jogging with the Ultrasonic Dog Repeller. It produces a high frequency sound that the human ear can not detect, yet it is able to deter vicious dogs without harming them...