WJ-25 400W Acoustic Hailing System Auxiliary SpeakerMarch 22, 2017This product is a 400W all-weather acoustic hailing device.view
AHD200 200W All Weather Proof Design Acoustic Hailing System Auxiliary Speaker (16Ω)November 20, 2019view
LRAD1410 100W Special Acoustic Hailing DeviceNovember 15, 2019LRAD1410 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.viewwe will contact you within 24 hours.
Unleashing the Audio Experience: The Role of Professional PA AmplifiersJuly 6, 2023In the world of live performances, events, and public gatherings, professional PA amplifiers play a vital role in delivering exceptional sound quality and ensuring an immersive audio experience for th...view
National Standard GB50526August 22, 2018Technical Code for Public Address System Engineering (National Standard GB50526), mainly drafted and translated by DSPPA is officially published today! This Standard is the first national standard in...view
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