rondent repellent consists of transducer and dual speakers, emits high impact pressure wave and 25KHz-60KHz changing ultrasonic sounds, effective in controlling squirrels,rats, mice, and most of the other common rondents intensively;naturally drives rondents out without killing them. No need to clean up dead rodents. The Squirrel Repeller creates an uncomfortable environment for rondrents so they simply leave typically after a few short weeks of use;Four different sound modes to choose from based on the environment: TEST, ULTRA, TRANS,DUO; It can keep squirrels, chipmunk, mice, rats and most of the other common rodents away from your indoor area effectively, like your garage, attic, basement, warehouse, barn, kitchen, living room, etc. Since squirrels are common throughout USA, it is a effective way to deter squirrels by achieving a long-term and cost-effective solution;It is a humane way to drive squirrels, chipmunk, mice, rats and most of the other common rodents away from your indoor area measuring 5,000-6,000 Sq.ft effectively like garage, attic, basement, barn, warehouse, kitchen, living room, etc. Plugging this device to protect your home and property against rodent defense;Before using the ultrasonic squirrel repellent, make sure there are no obstacles, such as curtains or cabinet coverings. The unit should be continuously used for at least 2-3 weeks, so as not to interrupt the effect.