It's hot summer time now. Cockroaches, mosquitoes, mice or something like that can be seen almost everywhere. They are disgusting, insanitary, especially for children. Because mosquitoes transmit malaria, rats may carry the virus and cockroaches spread bacteria.....They are dangerous sometimes! For the sake of your and your family's health, you need this Ultrasonic Electronic Pest Repeller, and create a clean and healthy living environment for them. The greatest love always lies in the details.Key Features:- It is applicable to repel cockroach, mosquito, insect, pest, mice etc. - The repelling ultrasonic frequency is 22 - 65KHz and the effective range is 80 - 120sqm- No-toxic and environment-friendly- Safe and odorless- The power source - AC 90V - 250V 50 - 60Hz, and the power is 5 - 6W- With ABS shell, durable and shock resistantNote: With US and EU plugs for you to choose, this EU plug does not apply to the Czech republic.