directional siren (Q25111662)
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siren with a bandwidth broader than 500 Hz-1.8 kHz that enables listeners to more quickly locate the source of the sound
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | directional siren |
siren with a bandwidth broader than 500 Hz-1.8 kHz that enables listeners to more quickly locate the source of the sound |
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Wikipedia(1 entry)
- enwiki Directional siren