This is a teardown and schematic of another interesting device from Ebay. It's called an "Anti-Bark Collar", a "Barking Stop Collar" or an "Electric Shock Dog Control". It's simply a collar you put on your dog's neck. When the dog barks too much, it will get a little electric shock. First bark activates a short warning beep only. Second bark activates a longer warning beep. Next 4 barks will activate 4 shocks with an increasing intensity. More barks within 30 seconds are ignored. After 30 seconds, the sequence can start again.
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