Powerful Performance: This latest ultrasonic rodent repeller has two chips, which will emit stronger and more concentrated ultrasonic waves, which will make it harder for pests and rodents to approach than before. Bed bugs, spiders, ants, cockroaches and mice stay away from you Homes! Safety and environmental protection: The insect repellent contains no chemicals, no radiation, no odor, no dead insects, no batteries and provides you with a safety guarantee. Its ultrasound only affects parasites, and the ears cannot detect sounds, so it will not interfere or irritate humans and animals! Small and light, wide range of applications: The new small square design is very cute, cartoon style, only 27g each, ultra-light and stress-free, widely used in homes, warehouses, offices, hotels, etc! effective coverage: We recommend installing one unit per room for best and best results. For larger storage areas, we recommend installing 2 or more devices! Easy to use: All you have to do is plug our pest control products into the outlet. It is recommended to insert flying insect pests at 20-80cm and then say goodbye to harmful pests within a month! Note: The data is manual measurement, please allow 1-42cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.