A silencing device for secret conversations. (Machine-translation by Google Translate, not legally binding)

摘要

A silencing device for secret conversations, characterized in that it consists of a mask of sound-insulating material and totally closed, except for the part to which it is applied in a hermetic way to the user's mouth to which it is held by elastic bands or similar means behind the ears or the nape of the neck, said mask being provided with a pressure relief valve to facilitate conversation inside the closed chamber of the same and having a built-in microphone, in its internal front that can be plugged in, by means of a connector appropriate, to an amplifier having a plurality of female plugs, one for each interlocutor provided with its corresponding mask, and also having each of these two built-in headphones that can be applied to the user's ears, in such a way that the interlocutors can talk without being heard by people outside the meeting and without its being detected versation by any spy device existing in the enclosure. (Machine-translation by Google Translate, not legally binding)