DSP9331 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
DSP9328W IP Waterproof Hands-free Telephone with Warning LightJuly 13, 2022view
DSP9327W IP Waterproof Sound&Light Alarm Wall-Mounted TelephoneNovember 3, 2021The phone support external loudspeaker and police lights,viewwe will contact you within 24 hours.
A Brief Introduction to the Announcement Speaker SystemJune 22, 2018An announcement speaker is a transducer that transforms electrical signals into acoustic signals. The performance of speakers has great influence on their sound quality. The speaker is the weakest dev...view
Construction of Smart Home Sound SystemAugust 6, 20181. Multichannel The most commonly used sound channels are 5.1 and 7.1 channels. 5.1.2 and 7.1.4 are three-dimensional immersion sound configurations, that is, the original 5.1 or 7.1 sound channels a...view
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