LRAS1515A 150W Active Long Range Acoustic DeviceJanuary 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...view
LRAS300 300W Active Special Acoustic Hailing DeviceAugust 2, 2022LARS300 is an active special acoustic hailing device. It adopts voice coil air cooling technology for fast cooling, with the high power over 300W. Compared with common acoustic devices, its maximum so...viewLRAS150 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.viewwe will contact you within 24 hours.
DSPPA Long Range Acoustic DevicesJune 9, 2020Today we are going to introduce our LRAS1530A Active Directional Long Range Acoustic Device and DS1421H Portable All-in-one Mass Notification Speaker.view
DSPPA network PA system used in China's largest urban Wetland ParkNovember 29, 2016As China's largest urban wetland, Harbin City Hulan Area Wetland park is 38.5 square kilometers,the core demonstration area of Songhua River wetland,the landmark landscape zone of the ecological corr...view
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