question: How was the moving coil microphone unique to the Wente type ?
answer: did n't require electronics installed in the microphone housing
turker_answer: The moving coil microphone was unique to the Wente type in that it did n't require electronics installed in the microphone housing .
rule-based: The moving coil microphone was unique to the Wente type by did n't require electronics installed in the microphone housing .