... and move on. These high-intensity sound waves are out of the hearing range of human beings and most household ... radios, electronic burglar alarms, fire or smoke detectors, pacemakers, hearing aids or other electronic equipment. ATTACK WAVE PEST REPELLER will not ... ultrasonic output. The shrill, shock, unregulated siren-like sound simulates the sound that pests hear continually.USAGE: Just plug in ...