Pest-Stop Electronic Pest Repeller- One Room {PSIR-OR}With a contemporary, slimline and discreet design, our indoor repellers are a simple, humane and mess-free pest control solution. It emits ultrasonic waves over an impressive 1,000 square feet, causing auditory stress to rodents and crawling insects, discouraging their presence in the home/business or working environment. Pest-Stop Electronic Pest Repeller Note: Image is for illustrative purposes only and may differ from the actual product.