Pic RR Sonic Rodent Repeller No poisons, no traps, no dead rodents to clean up Eco-friendlyFCC compliant & manufactured in an epa registered facility Produces ultrasonic waves in a swept frequency, constantly changing 60 to 80 times a second between 32khz & 62khz Used in homes and apartments, food service outlets, business, farm buildings, kennels and stables Sonic rodent repeller Drives away mice, rats and other pests Used in homes and apartments, food service outlets, business, farm buildings, kennels and stables No poisons, no traps No dead rodent cleanup