Max examines the Silver Dollar Microphone.

Transistorized microphone disguised as a silver dollar coin.

The device is capable of picking up a whisper from twenty or thirty feet and then transmitting it. Transmission range is unknown but the microphone is said to be "highly sensitized" and on assignment a signal from Las Vegas was received at CONTROL headquarters in Washington "clear as a bell".

[Episode #52: "Smart Fit the Battle of Jericho".]

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