Passive Acoustic Hailing Device

Passive acoustic hailing devices with high directivity and long‑range intelligible sound transmission for remote communication, warning and crowd management. Ideal acoustic solutions for security, emergency notification and outdoor public address applications by DSPPA.

LRAS1515 150W Long Range Acoustic Hailing LoudspeakerMay 22, 2019This product is a portable long range directional acoustic transmitter. Featuring powerful sound intensity, high directivity and high intelligibility, this product can realize long range communication and deterrent warning, It is a multifunctional militarview
LRAS1405 50W Special Acoustic Hailing SystemNovember 15, 2019LRAS1405 acoustic hailing speaker can be clearly heard by vehicles 100m away, suitable for remote amplification and emergency weather forecast on the highway; It can be used in special places such as ...view
LRAS1410 100W Special Acoustic Hailing SystemNovember 15, 2019LRAS1410 acoustic hailing speaker can be clearly heard by vehicles 200m away, suitable for remote amplification and emergency weather forecast on the highway; It can be used in special places such as wildlife reserves, chemical plants, power stations, traffic control areas, and airports; All-weather design with a shell made by aerospace industry technology, resistant to acid and alkali as well as salt spray, and can withstand high-strength impact and vibration.view
LRAS1420 200W Special Acoustic Hailing System for Acoustic WeaponsNovember 15, 2019LRAS1420 is a 200W highly intelligible long range acoustic hailing device that has all-weather design, acid and alkali resistance, salt spray resistance, which can withstand high strength impact and v...view
LRAS1830 300W Long Range Acoustic Hailing Intense Sound SpeakerNovember 20, 2019LRAS1830 Long Range Acoustic Hailing Intense Sound Speaker is a compact and portable long range directional acoustic wave transmitter, far superior to other PA systems in public places, and can be us...view
WJ-12 200W Acoustic Hailing System Auxiliary SpeakerMarch 22, 2017view
WJ-20 200W Acoustic Hailing System Auxiliary SpeakerMarch 22, 2017The WJ-20 is a 200W all-weather acoustic hailing system loudspeaker. With the high-end speaker unit, it brings high speech intelligibility and excellent sound reinforcement effect, which is suitable f...view
WJ-25 400W Acoustic Hailing System Auxiliary SpeakerMarch 22, 2017This product is a 400W all-weather acoustic hailing device.view
WJ-50 1000W Acoustic Hailing System Main SpeakerMarch 22, 2017The WJ-50 is a 1000W all-weather acoustic hailing system loudspeaker. With the high-end speaker unit, it brings high speech intelligibility and excellent sound reinforcement effect, which is suitable ...view