Guaranteed to stop dog barking, this is the lightest and smallest collar on the market. This bark collar is activated by your dog’s barking noises. The barking triggers the bark control- a high-decibel sound-it emits a loud sound, similar to a smoke detector. Much of this tone’s spectrum is beyond the range of human hearing, but dogs and cats find it undesirable and distracting. The collar's cutting-edge, bark detection microphone can be adjusted to recognize your dog's unique bark so that no other sound can set off the unit. Your dog will quickly learn that barking causes the annoying, loud sound, and that not barking is the way to avoid them.

• Lightweight & Smallest Collar, One-Ounce & 1.9 Cubic Inches
• Adjustable Sound For Pet Sensitivity
• Uses Loud But Harmless Audible Sound to Deter Barking
• Receiver can be Attached to Your Existing Collar
• Operating & Training Manual