Patented Perfect Bark™ Detection - A Patented, breakthrough in bark detection! Some bark collars detect barking with a microphone and activate on sound, but can be falsely set off by other noises or another dogs bark. Some bark collars use vibration but can be falsely set off by other motion or jostling. The Perfect Bark™ technology combines both sound and vibration, and then uses a computer controlled microprocessor technology to analyze these inputs. The result is a fool-proof bark detection system, assuring the best possible anti-bark training.

- The smallest static correction bark collar available, 20% smaller!

- 18 total levels of correction. Three selectable ranges. Within each range, there are six automatically incrementing correction levels. On the first bark, your dog gets the lowest, mildest correction. The corrections gently increase with each successive bark until your dog finds the level that is sufficient to discourage it from barking.

- Five position rotary switch that selects between off, three ranges of shock levels and a test mode

- LED for low battery warning flash(will flash once every 2-3 seconds when low battery voltage is detected)

- Perfect Bark™ uses both sound and vibration to accurately detect a bark everytime

- New 6V Battery Module can be replaced easily and without tools

- Water resistant