【principle of operation】 This product uses ultrasonic bark control technology. The product will automatically emit ultrasonic waves after detecting dog barking. This sound can only be heard by dogs, but not by humans. The dog will be frightened by the sudden onset of high frequency sounds and will stop barking under normal circumstances. He will associate the barking with this uncomfortable sound. When it is repeated several times, the dog will find that its barking will bring him discomfort and gradually reduce barking. This method of barking control is safe and effective. 1. All new design with LCD screen. 2. With the power display, it can solve the problem of not knowing the battery power. 3. A more reasonable low battery alarm prevents the inability to stop barking due to the decrease in ultrasonic wave intensity caused by a low battery. 4. Intelligent voice recognition, filtering out some external noise interference, triggering more precisely and simultaneously reducing power
