mosquito killer electronic multi-purpose ultrasonic pest repeller reject anti rodent bug reject rat mouse repellent 50pcs/lot simple opp

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 resistant