The PMLN5011 Temple Transducer Headset uses two bone vibration speakers for receiving, and a flexible boom microphone for transmitting. Unlike traditional headsets, the Temple Transducer allows the user's ears to be uncovered and completely free to hear surrounding environmental sounds while using the two-way portable radio. An in-line push-to-talk (PTT) button with clothing clip frees the user from holding the radio while communicating