LRAD1520 200W Special Siren Acoustic Hailing Directional DeviceNovember 20, 2019view
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
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 ...viewwe will contact you within 24 hours.
Some Conference Functions of Paperless Conference SystemJuly 21, 2021Paperless conference system uses modern communication technology, audio technology, video technology and software technology to realize paperless conference through electronic exchange of documents. I...view
DSPPA Monthly Sales Awards CeremonyAugust 5, 2020Abstract: Fight for 2020, fight for DSPPA! Last evening, we held a monthly sales awards ceremony, to thank our hard-working employees and took this opportunity to motivate other staff. The best sales...view
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