Subminiature Electret Microphone in a Tie Tac
A microphone intended for processional applications employing the electret concept has been designed into a package resembling a conventional tie tac. In use the pin-like coaxial probe pierces the user's clothing to interface with a small electronics assembly. This approach permits the transducer to be placed in a good location without the microphone and its cable being visually ovbious.
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