DSP9327 Waterproof Sound Alarm Wall-Mounted TelephoneNovember 3, 2021The Waterproof telephone is suitable for use in environments with special requirements such as subways, light rails, highways, ships, mines, power plants, steel companies, etc, which have special requirements for moisture, fire, explosion, noise, and frost resistance.view
DSP9327W IP Waterproof Sound&Light Alarm Wall-Mounted TelephoneNovember 3, 2021The phone support external loudspeaker and police lights,view
DSP9332 Audio Intercom Terminal with Two ButtonsApril 15, 2024The product is an all-digital network-based intercom device with a proven VOIP solution at its core, stable and reliable performance; adopts hands-free digital full duplex mode for clear and loud voic...viewwe will contact you within 24 hours.
The Function and Characteristic of PreamplifierApril 29, 20211. The basic function of preamplifierThe preamplifier is the connection device between various audio source equipment (including ordinary audio sources such as CD players, tuners, decks, MP3 players a...view
Features and Application Scenarios of Line Array SpeakersDecember 12, 2024Line array speakers are a special type of speaker system, distinguished mainly by their radiating units (i.e., speakers) arranged in a straight line with tight spacing while maintaining the same ampli...view
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