【Powerful Performance】: This latest ultrasonic rodent repeller features two chips that emit stronger and more concentrated ultrasonic waves, making it harder for pests and rodents to approach than before. Thumbtacks Bed, spiders, ants, cockroaches and mice stay away from your homes! 【Safety and Environmental Protection】: The insect repellent contains no chemicals, no radiation, no odor, no dead insects, no batteries, giving you 100% safety guarantee. His ultrasound affects only the parasites, and ears cannot detect sounds, so humans and animals are not disturbed or irritated! 【Small and light, wide range of applications】: The new small square design is very cute, cartoon style, each only 27g, ultra-light and hassle-free, widely used in homes, warehouses, offices, hotels, etc ! 【Effective Coverage Rate】: The ultrasonic insect repellent is effective indoors under 1600 square feet. We recommend installing one unit per room for the best and best results. For storage areas larger, we