[Safely Repel Mice and Insects] Newest 2021 Electronic pest repeller protects home without mouse, and also restrains insects, such as mouse, mosquito, cockroach, moth, termite, spider, ant, fly, bee, centipede, locust and cricket. Our ultrasonic pestcontrol device is 100% safe to kids and pets. [Most Advanced Technology] This ultrasonic pest repeller can send out bionic waves + ultrasonic waves + electromagnetic waves. Wave frequency is irregularly changing, so pests cant adapt this pest plug. [Night Light] This mouse repeller automatically lights up a light at night. The light attracts pests to the nearby, weakening theirs activity and destroy theirs reproductive capacity. [Dont Worry if Pests Are More Active] For about 3~5 days stimulation by the ultrasonic pest control device, mice may ran around, and more insects appear in your sight. 2 weeks, mice and insects decrease evidently. 4~7 weeks, you will barely see miceand pests.