The Global Leader in Long Range Acoustic Hailing Devices


Mass Notification & Emergency Warning

LRAD Revolutionizes Mass Notification with
Highly Intelligible Voice Broadcasts

Until recently, voice communication had been an afterthought for mass notification systems. While technologically outdated warning systems sound sirens to alert of approaching danger, most are incapable of clearly broadcasting information about the severity of the situation or recommended actions to protect and save lives. Maintaining order and safely conducting emergency preparations can create significant challenges for civil authorities and law enforcement during extreme events.

Combining warning sirens with highly intelligible voice communications eases the panic associated with traumatic events. Notifications and instructions broadcast with exceptional vocal clarity, inform, calm and provide potentially lifesaving information.

Unlike the limited voice quality and range of bullhorns and siren-centric warning systems, LRAD ONE VOICE™ systems combine attention-commanding sirens with exceptionally intelligible voice messages. ONE VOICE systems enable authorities to communicate over wind, traffic, engine and background noise from close range up to 5.3 sq. kilometers. LRAD systems are self-contained or easily integrated with existing communications infrastructure.

LRAD’s siren and voice broadcasts are safe and have been optimized to the primary human hearing range of 1 – 5 kHz. By maintaining a smooth frequency response with an intensity variation of less than 5dB, LRAD has eliminated the shortcomings of competitor systems by preventing audio fading and producing clear, unambiguous communication across all broadcast frequencies.

LRAD goes anywhere communication is needed. From hand portable devices to larger systems temporarily or permanently mounted on poles, buildings, trailers, vehicles or helicopters, LRAD systems are highly effective in communicating lifesaving information locally and over large areas before, during, and in the aftermath of emergency situations.

Contact LRAD Corporation for more information.