4-in-1 Pest Repeller HX-11H combines electro-magnetic, ultrasonic waves, negative ions and night-light. The 4-in-1 Pest Repeller uses sonic technology to drive a wide variety of pests out of your home.The 4-in-1 Pest Repeller emits high-pitched ultrasonic waves, inaudible to the human ear, but unbearable to rats. Electro-magnetic (vibrating) waves that irritate the pest can’t sleep, eat or reproduce.
Pest Repeller Hannox HX11H:
Automatically frequency-variable ultrasonic.
Electro-magnetic repels insect and bugs.
Anion function for organic odor purification.
Nightlight use a wave that repels away mosquitoes & insects.
Safe for use around humans, pets and electrical household products.