Anti Barking Dog Silencer Tool

Features: Trigger the ultrasonic circuit through the barking of the dog, and send out a harsh ultrasonic wave for 5 seconds (the human can't hear it, the dog can hear it), making the dog feel very uncomfortable (no harm to the dog).After repeated iterations, the dog established a conditional reflex, knowing that the sound wave appeared because of his own arrogance, and then no longer easily screamed. It is equipped with a power adapter and plug-in. It does not need to change the battery frequently. Effective distance 5M, very suitable for hotels, restaurants, courtyards, garages and other places. Description: Specification: 9.3*6*11.4CM Material: ABS plastic Power supply: AC 9V 600mA CE certified. Package include： 1 box [stopper + adapter + screw *2+ fixed base] Note: Battery-free, with adapter 1. Do not install wet, leaking, sunlit, and easily accessible areas. 2. Do not invert or install horizontally to avoid affecting sensitivity. 3. The human ear should not be close to the tr