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DSP9342 Audio and Video Intercom TerminalApril 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...view
DSP9328S IP Waterproof Hands-free Telephone with LoudspeakerJuly 13, 2022view
DSP9328W IP Waterproof Hands-free Telephone with Warning LightJuly 13, 2022viewwe will contact you within 24 hours.
The discriminative methods of positive and negative poles of announcement speakerJune 22, 2018The phase of an announcement speaker is the connection of the positive and negative poles of the loudspeaker when used in series and parallel. When more than two speakers are used, the consistency of ...view
Happy 32nd Anniversary, DSPPAAugust 7, 2020Abstract: With determination and through self-reliance and hard work, we have forged ahead on the road to company development and progress.With determination and through self-reliance and hard work, w...view
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