Can you block an LRAD?
LRADs are designed to produce VERY loud sound, and loud sound can cause significant damage to our auditory (hearing) and vestibular (balance) systems. It is not possible to fully protect yourself from potential hearing damage from an LRAD! (The only way to protect civilians from LRADs is to not use LRADs.)
Are earplugs effective against LRAD?
If you think police might be using an LRAD at a protest you’re attending, bring earplugs or safety ear muffs with the highest dB-reduction rating you can find. Foam earplugs, available at many pharmacies, are inexpensive and effective.
How far can you hear LRAD?
LRADs can transmit speech and acoustic information over long distances, up to 5 km or more. While the benefits of LRADs as a tool for critical communication are clear, their weaponized use as crowd control is undeniably hazardous. LRADs can cause pain using 110 – 130 dB SPL at 65 feet [7,8].
Can sound be used for crowd control?
Acoustic weapons, also known as long-range acoustic devices and sound cannons, are devices that deliver very loud sounds over long distances. This technology is used for crowd-control purposes by emitting loud and painful levels of noise that may lead to significant harms to the ears, potentially causing hearing loss.
Is LRAD legal?
The NYPD, however, says its LRAD use has not violated any laws. “The Long Range Acoustic Device is a safe and effective communication tool the department uses legally, during disorderly demonstrations,” an NYPD spokesperson told The Daily Beast in a statement.
How much does an LRAD cost?
The LRAD ranges in price from $5,000 for a basic handheld model to its most expensive model that sells for between $100,000 and $190,000. Civil liberties unions in both Canada and the United States have expressed concern about the use of the LRAD, which they characterize as “military-grade” equipment, by police.
What does LRAD do?
LRAD systems are a type of Acoustic Hailing Device (AHD), used to send messages over long distances. LRAD systems produce much higher sound levels (volume) than normal loudspeakers or megaphones. Over shorter distances, LRAD signals are loud enough to cause pain in the ears of people in their path.
How does a Long Range Acoustic Device Work?
An LRAD is a loudspeaker-like device that emits a focused beam of sound. What makes these systems unique is that rather than transmitting sound like a loudspeaker in many directions (similar to the way a lightbulb emits light), LRAD systems transmit sound in a narrow beam (much like a flashlight).
How does the LRAD work?
What does a LRAD device do?
What is 500X device?
The Model 500X Long Range Acoustic Device is a compact, lightweight communication device that broadcasts clear, authoritative voice commands and attention-commanding deterrent tones to safely modify behavior, enhance response capabilities and provide additional time to escalate the use of force if necessary.
