Variable Ultrasonicwhich automatically emits 20~65kHz ultrasonic. In addition to our repellent, it is equipped with a horn to ward off parasites from fixed frequencies. The microcomputer automatically changes the frequency in intervals. Make the product efficient and intuitive for you. NightlightAccording to experiments, mice are intolerable by nature and prefer dark and humid environments. Our lights have two ways that protect you from pests while illuminating the night. This is different from commercially available rodent repellents. Covers a large areaEach ultrasonic electronic pest control product is effective over a large area. They have an area of 15-30 square meters. It is much stronger than other cheaper repellents. Please note that ultrasonic waves cannot penetrate through walls. Although our insect repellent works well, we recommend applying our insect repellent to any room if the infestation is heavy. Safe and QuietNon-toxic and environmentally friendly. Our repellent is safe and effective. The ultrasonic frequency emitted by this device is inaudible to humans and pets. Safe for children, families and pets But if you have a hamster at home, you should not use this ultrasonic device. Easy to useThis device should be installed 20-80cm from the floor. And plug it vertically into the ground and into the power outlet. It can be connected directly to a power outlet. It can be used in homes, warehouses, stores, hotels, hospitals, offices, etc. Save as much money as possible. Repel many types of pests Against rodents, hamsters, mice, gerbils, guinea pigs, tarantulas, bats, squirrels, spiders, cockroaches, fleas, ticks, flies, wasps, ants, bed bugs, silkworms, mosquitoes, bees and other small pests. Effective wide coverage One piece, one unit is recommended as ultrasonic cannot penetrate walls and solid objects Safe for children and pets Ultrasound is inaudible to humans and pets. It is a perfect substitute for harmful and dangerous chemicals, poisons and traps. It has no peculiar smell and noise.