Ultrasonic insect repellent: The latest ultrasonic chip technology in 2021, the ultrasonic machine stimulates the sensory system and nervous system of the pest. Makes them want to escape the place. During the first 2 weeks, all pests are driven outof the colony. You may see an increase in pests, which is evidence that pests are being driven and left. You can see results within 2 to 3 weeks. Safe and Effective: This product is non-toxic and tasteless, no need to worry about harm to children and pets. Repels mosquitoes and other harmful insects. Instead of worrying about damage from chemical products and the need to clean up their remains. Night Light Function: The product is equipped with a breathing light at night to provide soft lighting. Night lights can stimulate pests to leave. At night, it also becomes an ambient light in the room, relaxing the mood and helping sleep. The mouserepellent plug-in operates silently, providing you with a quiet and harmless sleeping environment. Comprehensive Protection: The Ultrasonic Pest Repeller is designed to emit ultrasonic waves from 360 omnidirectional, efficiently covering and controlling an area of up to 1600 square feet, leaving pests nowhere to hide. For good results, one roomand one drive are recommended. Because ultrasonic waves cannot penetrate walls and solid objects. Goodbye Pests: Insect repellent keeps all kinds of insects away from your house, such as spiders, mice, mosquitoes, mice, cockroaches, ants, snakes, etc. No need to worry about the noise, it will not disturb you and your pets. Ideal for indoor use,such as homes, restaurants, hotels, hospitals, office buildings, warehouses, etc.