Rat Shield

Rat Shield protège contre les rats par ultra sons éclate que les rats ne peuvent pas supporter

Rat Shield gives protection against rats, mouses and all so forth.

It produces sound effects rats can't stand - e.g. high frequency ultrasound that is used for warning other rats about present danger.

For more scientific facts see e.g. "Principles of Rat Communication: Quantitative

Parameters of Ultrasonic Calls in Rats" from Stefan M. Brudzynski (http://www.cursoecologia.ufba.br/Arquivos/Comunicacao_Animal/rat_communication.pdf)

Let's fight against rats!