LRAS1515AI LRAS1515PII Active Long Range Acoustic Hailing Speaker System with Howling SuppressionSeptember 28, 2025The LRAS1515AI Active Long Range Acoustic Hailing Speaker System is portable and delivers high sound pressure, highly directional, high-definition audio. Within the system, the LRAS1515PII Acoustic Ha...view
DSP1515NS IP Network Acoustic Hailing Device LoudspeakerJune 6, 2024The device supports the international standard SIP protocol and accepts broadcasts and calls from the LAN. It is made of high-quality PE plastic, which is durable and fully meets the requirements for ...view
LRAS1515A 150W High Power Active Long Range Acoustic SpeakerJanuary 18, 2020This 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...viewwe will contact you within 24 hours.
DSPPA, Happy Birthday!August 10, 2018DSPPA, Happy Birthday!Yesterday, August 8th, is the 30-year-old birthday of DSPPA. The 30th anniversary celebration and fifth Thanksgiving Day of DSPPA was held in DSPPA headquarter. More than 800 emp...view
The Basic Structure and Composition of the Conference SystemApril 29, 20211. The basic structure of the conference systemThe most basic conference system is composed of conference speaking units, power amplifiers, speakers, and desktop display devices (such as desktop smart...view
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