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
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
DSP9328W IP Waterproof Hands-free Telephone with Warning LightJuly 13, 2022viewwe will contact you within 24 hours.
Smart Classrooms: The Role of IP Ceiling Speakers in Modern EducationDecember 22, 2023In the dynamic landscape of education, technology plays a pivotal role in shaping the learning experience. Smart classrooms, equipped with advanced audio-visual solutions, are becoming increasingly pr...view
The Strongest Escort for College Entrance ExaminationNovember 29, 20162015 College Entrance Examination in China has been pulled down the curtain.DSPPA and its dealerChangchun Hanrui Electronic Co., Ltd had made a perfect ending for this examination,providing a stronges...view
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