Abstract: A voice communication relay device for use in combination with a protective face mask having an embedded microphone, a headset, a radio, and a push-to-talk (PTT) device that is connected to a radio. The voice communication relay device includes: a housing; a device speaker associated with the housing; an amplifier in the housing, the amplifier being electrically connected to the device speaker; a circuit board located inside of the housing; and a power source. At least one function of the circuit board is to serve as an Impedance dependent auto switch (IDAS) that is electrically connected to the device speaker and an output connector for selectively sending signals to the device speaker or to a radio that is connected to the PTT device.

Abstract: An apparatus for interconnecting a radio communication equipment connector with non-Original Equipment Manufacturer (OEM) accessories includes a pass through portion including a first connector and a second connector having the same type and an opposing gender with respect to the first connector. A conversion portion is coupled adjacent the pass through portion and is configured to electrically interface with one of the plurality of the contacts of the first connector or the second connector. The conversion portion is further configured to transmit a signal from one of the plurality of contacts of the first connector or the second connector to a non-OEM accessory. Additionally, the apparatus is configured to concurrently maintain the functionality between an OEM accessory and a radio connected thereto.