The two-wire surveillance kit consists of a whisper palm microphone with self-contained soft button PTT switch and removable clothing clip. The wearer can use the system by raising the unit to the mouth via the palm of the hand to transmit whisper conversations. It can also be pinned to the back of a tie or business suit for transmission of the user's voice or to pick up nearby conversations.

Earcord assembly with transducer, ear hanger and ear insert are standard. The lower cord assembly for each make and model of radio is the same used for the three-wire surveillance kit. Each two-wire kit consists of three component part numbers. The exception is the 6-pin Hirose version for Motorola XTS3000, HT1000, MTS2000 and Sabre series radios along with Racal/Thalus model radios.

Coiled tube and open earmold can be purchased as accessories.