DetailsOur pest repeller is designed with a transducer and dual speakers, which can emit ultrasonic sound at frequency of 100Hz-65kHz. It is able to drive squirrels, mice, rats and most of the other common rodents away from your indoor areas around 3229sq.ft effectively. Perfect use in the kitchen, living room, office, garage, basement, etc.. 3 Repelling modes are provided to choose according to different needs. No harm to human and pets, super environmentally friendly. Effective Pest Repeller -