LRAS1830A 300W Acoustic Hailing DeviceApril 30, 2021LRAS1830A is a 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 ...view
LRAS150 150W Mass Notification SpeakerAugust 16, 2018LRAS150 is an active special acoustic hailing device. It adopts voice coil air cooling technology for fast cooling, with the high power over 500W. Compared with common acoustic devices, its maximum sound pressure level is 10dB higher, greatly enhancing the sound transmission distance.view
LRAS1860A 600W Active Long range acoustic hailing systemAugust 2, 2022viewwe will contact you within 24 hours.
Congratulations on the 70th Anniversary of the PRCSeptember 30, 2019On the 70th anniversary of the PRC, we DSPPA are pleased to celebrate the National Day.view
Applications and Prospects of Smart Poles in Various IndustriesAugust 13, 2024Smart Poles endow traditional poles with more functional attributes, allowing for more diversified applications across various industries. The main industry/sector scenarios include:Transportation Ind...view
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