【Advanced Mosquito Killing Technology】: The ultrasonic insect repellent adopts an upgraded chip, which automatically changes the ultrasonic frequency to generate stronger ultrasonic waves. This type of ultrasound can affect the brains of insects and rodents and can make mice, spiders, flies, fleas, ants and ants very uncomfortable and drive them out of your home.【Easy to Use】: Our electric ultrasonic fly killer is very convenient to use, just plug this device vertically into the outlet and it will work automatically. Be sure to install it vertically, 30-80cm from the floor, and do not cover this appliance with items that may affect its efficiency. The Spider Remover plugin works automatically and most customers see results within 2-3 weeks!【Wide Effective Coverage】: The effective range of the mosquito repellent is 80-120 square meters. Since ultrasonic waves cannot penetrate walls and solid objects, it is recommended to have at least one type of insect repellent in the room. But for areas with severe pests, we recommend installing 2 or more until the desired effect is achieved.【Lightweight Design, Wide Application】: This mosquito repellent mouse Ultrasonic uses about 3-6W, low power consumption, long life, safe and energy saving. The ultrasonic insect repellent is easy to carry and easy to install. When you go out, you can put it in your pocket and use it as long as there is a power outlet. Widely used in homes, hotels, offices, warehouses, etc.【Safe and environmentally friendly】: The mosquito repellent is safe, chemical-free, non-toxic, odor, silent and radiation-free. Humans and pets cannot hear ultrasound. This product physically repels mice and vermin from your home, not killing them. Ultrasonic mosquito repellent has no effect on pregnant women, children and pets.