Natural shield that protects parents and babies from mosquito bites. It works with ultrasound technology, which is unpleasant for mosquitoes but has no undesirable effects on people. As it is completely ecological, it is not necessary to air the rooms after use. Due to technical-functional characteristics, the performance of the product can be reduced or become ineffective with certain types of mosquitoes or when used in non-European latitudes. Low energy consumption.