Dispositivo antiladridos para perros, collar de entrenamiento para perros recargable por USB, collar antiladridos con vibración ultrasónica

  How does the anti-barking dog collar work? 1st bark --- 1.5 seconds beep 2nd bark --- 2.5 seconds beep 3rd bark --- 5 seconds beep + 1 seconds vibration 4th bark --- 5 second beep + 1.5 seconds vibration 5th bark --- 5 seconds beep + 2 seconds vibration 6th bark --- 5 seconds beep + 3 seconds vibration 7th bark --- 5 seconds beep + 4 seconds vibration