Dogtra has developed a �sound recognition and filtering microprocessor� that distinguishes your dog�s barking from ambient noises. The model YS300, an intelligent no-bark dog collar, is fitted with this self-activating micro-processing sound analysis technology, which only responds to the barking of your dog. (Patents pending.)
With proper repeated usage, when level �P� is used, your dog can learn to stop barking with the vibration warning so that stimulation will no longer be necessary.
1 yr. mfg. warranty. 30 day money back guarantee.