WEBVTT

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- [Keith] LRAD is a Long-Range,
Acoustic Hailing Devices.

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They provide the user with an ability

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to transmit their voice
down to extended distance.

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What makes them different
in the marketplace is that,

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in rather than just being
projected straight out,

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like the Bullhorn,

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it rifles kind of, get focused it down.

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And they're very good at being
clear intelligible voice.

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So you could hear very well

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exactly what the person is saying.

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- This is a test of the Long-Range

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Acoustic Device, LRAD.

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The LRAD can be used to to nail and notify

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at great distances using
live or pre-recorded sounds

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or voice messages.

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- It's optimized for human voice

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so you can prerecord messages

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that you wanna transmit to people,

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whether it be in a disaster area,

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whether it be just crowd control

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or an event where you wanna tell people

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what to do and where to go

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and how to respond.

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Therefore different devices that we have

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the white one next to me is...

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we'll send the sound
out in a 360 degree arc.

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The other two to my furthest to my left

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are war directional in nature.

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They'll produce a sound.

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The sound will go out anywhere
from 50 to 2000 meters out

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and in a cone about 30 degree arc,

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it's the improvement to the Bullhorn.

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The Bullhorn is kind of like a shotgun

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Whereas this device is
more of a rifle shot.

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It's used by the war fighter
in both Afghanistan, Iraq,

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to communicate with the local
response or local people

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that may be coming up onto

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a US vehicle.

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Or they can use it and fax it out

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and talk to them with the
Bullhorns and the noise

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that's going around them.

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It's very difficult for them to hear.

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It's also been integrated
onto helicopters,

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and you can hear it over the prop wash

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so you can speak down from it.

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Fire departments and police
departments have it as well.

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The coast guard uses it, the
Navy they're on cruise ships

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for them to be able to talk
to the people on shore.

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