YUFENG Multi-purpose Electronic Pest Repeller Ultrasonic Rejector for Mouse Bug Mosquito Insect 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 The power source - AC 90V - 250V 50 - 60Hz, and the power is 5 - 6W With ABS shell, durable and shock resistant