Description
Adjustable Frequency Design: The dog anti barking device is designed by the latest variable frequency. Three different frequency waves can emit ultrasonic from low to high, which can avoid becoming immune to a certain frequency ultrasonic sound after a long time of adaptation and no longer respond to it. Help your pets understand that their bad behaviors will cause an uncomfortable experience. Rechargeable: The ultrasonic dog bark control device with built-in 480mA rechargeable lithium battery c
