harmonica bug

名词 n.
中文释义

英文释义

名词 n.
  1. An electronic eavesdropping device (bug) that attaches to a landline telephone and is activated or deactivated by a specific tone. When activated, it prevents the telephone from ringing but activates its microphone to transmit to another telephone at a remote location.
    — The most interesting device for tapping a telephone, though, is still the old reliable “harmonica bug,” which was invented in the early sixties by an electronics wizard from Lower Manhattan, Emanuel Mittleman.

词形变化

harmonica bugs plural

词源

From harmonica for the tone that activates or deactivates the device, and bug (an electronic eavesdropping device).
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