WJ-12 200W Acoustic Hailing System Auxiliary SpeakerMarch 22, 2017view
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.view
MP2530 Two Channel Digital Power AmplifierMarch 22, 2017MP2530 Two Channel Military Acoustic Hailing System Host, which is called public address amplifiers.viewwe will contact you within 24 hours.
Holiday Notice of International Workers’ DayApril 30, 2021Dear partners,According to the notice of 2021 holiday arrangement issued by the State Council, and in combination with the actual situation of our company, the May Day holiday of DSPPA in 2021 is here...view
Control Equipment Technology of Intelligent Conference SystemDecember 28, 2021Ⅰ. The concept of intelligent conference sysemIntelligent conference system is a comprehensive application of multimedia technology, control technology, communication technology, computer technology,...view
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