This Pest-Stop Electronic One Room Pest Repeller offers the domestic user a contemporary, aesthetically pleasing and effective solution to pest problems in the home. With a coverage of 1000 square feet, this repeller can easily cover a standard room. The repeller uses electromagnetic waves and is highly effective against rodents and most crawling insects. It has a large speaker and an LED light which is lit when the repeller is working.Additional Information:• Pest Type: Mouse & Rat• Control Type: Repeller• Pack Qty.: 1