The Petsafe PDBC-300 Deluxe No Bark Control Collar with sound and vibration sensitivity has a unique patented sensor technique that provides the most reliable bark detection available. The bark control collar uses both vibration and sound sensors to discriminate each bark from other external noises. A static correction is administered through the contact points only if both the vibration from the vocal cords and the sound from the bark match the bark sampling criteria.
The bark control collar starts with the lowest level of static correction in each mode and then increases through 6 levels each time your dog barks within 30 seconds of the previous bark. If your dog does not bark again within 30 seconds, the bark control collar will reset itself to the lowest level of static correction in the current mode. Along with each static correction, the LED indicator light will flash. As a built-in safety feature, if your dog barks 15 times or more within a 50-second period, the bark control collar will automatically shut off for 3 minutes.