WJ-12 200W Acoustic Hailing System Auxiliary SpeakerMarch 22, 2017view
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...viewwe will contact you within 24 hours.
The National Standard Approval Meeting held in BeijingJuly 19, 2019The National Standard Approval Meeting held in BeijingThe approval meeting of the National StandardTechnical standard of public address system engineeringis held in Beijing on July 16, 2019. Xue Chang...view
DSPPA Products Presented in the ICTWEEK Uzbekistan 2019November 22, 2019DSPPA Products Presented in the ICTWEEK Uzbekistan 2019 DSPPA products appear in the Information and Communication Technologies Week 2019 – ICTWEEK Uzbekistan 2019, which was held on 24-27 September,...view
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