Creating a key folder, key case, the folio, pocket made of leather or plastic, with the special feature, the no beams or radio frequencies, can escape. It is a shielding system is implemented, which during the introduction of any devices, key or transmitter represents an encapsulation. It is no more beams penetrate out.

摘要

Key folder with an internal enclosure can be closed, so that beams is not a and can emerge, characterised in that in the key folder on the inside a insulating - or shielding material is glued or sewn on, or they completely made of such material.