Radarcan R-107 User Manual page 7

Technology
The PORTABLE MOSQUITO REPELLER HOME incorporates
technological innovations and is developed with
components manufactured under strict RADARCAN®
specifications for the greatest reliability and effectiveness.
INSonuerit 1.0
Our own advanced technology based on the use of specific
ultrasound frequencies studied to find a natural method of
protection against mosquitos.
Ultrasound consists of high-frequency sound waves which are
perceived by mosquitos, but inaudible to humans.
The ultrasound waves fan out uni-directionally from the
PORTABLE MOSQUITO REPELLER HOME, like fluorescent
light.
Hard substances (walls, ceilings, furniture, glass, etc.) promote
better spreading out of the sound waves, as they bounce off
these surfaces, whereas soft materials (cardboard, curtains,
carpeting, etc.) absorb the sound waves.