harmonica bug
An electronic eavesdropping device that attaches to a landline telephone and is…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.
Meaning
1 sensesAn 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.
Origin
From harmonica for the tone that activates or deactivates the device, and bug (an electronFrom harmonica for the tone that activates or deactivates the device, and bug (an electronic eavesdropping device).
Wiktionary, CC BY-SA 4.0 · source
Forms
plural: harmonica bugs| Singular | harmonica bug |
|---|---|
| Plural | harmonica bugs |
regular