OUTXPRO Ultrasonic 360 Degree Rodent Insect Repeller &ndash; Eco Friendly Pest Control Solution for Mice, Rat and Rodents ELIMINATES ALL TYPES OF RODENTS & INSECTS: Protects your house from Mice, Rats, Roaches, Fleas, Flies, Crickets, Silverfish, Water bugs, Moths, Ants and other common pests. COVERAGE AREA: up to 4000 square feet- 360-degree Guaranteed Protection. Automatically sweeps the ultrasonic range of 20000 Hz to 45000 Hz, to prevent pests form developing an immunity to a pre-selected single sweep rate. ELECTROMAGNETIC TECHNOLOGY: High-intensity ultrasonic waves (120 decibels) attack the auditory and nervous systems of unwanted pests causing them such pain and discomfort that will force them leave your home and no longer try entering it again. HUMAN AND PET FRIENDLY: NO harmful Chemicals or Poisons. Functions out of Human and most household Pets hearing range. Advanced Technology prevent pests from developing immunity to signals MONEY SAVER: Leave Device plugged in ALL year round. Day and Night 24 /7 Only 1-2 cents per day to run.