The German Federal Defense Technology and Supply (Bundesamt fur Wehrtechnik und Beschaffung) commissioned more than 250 CeoTronics communications systems ready for radio communication to the NBC Federal Protection Department. Each system is equipped with a throatmike and speaker microphone. The user can easily switch from one microphone to another. These systems are perfect for protective suits that cover the entire body. The large and custom size of the PTT switch, used for the operation of the added radio unit, makes it easy to use under the protective suit.