Plug-In Mosquito Repellent 230 V

ULTRA BITE-FREE sends an ultra-high sound almost not perceivable for the human ear which dispels female and fertilised insects.
Pets will not be impaired.
Without chemicals and additionals costs, economical and safe due to high-class electronics.
Applicable anywhere (kitchen, livingroom, bedroom and nursery).
Received award at the international fair of inventions.