DSP203N Indoor Column SpeakerMarch 22, 2017DSP203 is an indoor column speaker built-in 70v/100v transformer. The 70v/100v transformertechnique reduces line losses on longer distance and allows easy parallel connection of multiple loudspeakers....view
DSP288 Waterproof Column Speaker 30WMarch 16, 2017The DSP288 is a weatherproof outdoor column speaker with a 70v/100v transformer built-in.The 70v/100v transmission is realized in a high-voltage, low-current mode, which makes longer distance transmis...view
DSP405N Network Outdoor Waterproof Column SpeakerMarch 22, 2017The DSP405N is a weatherproof outdoor column speaker with a 70v/100v transformer built-in.The 70v/100v transmission is realized in a high-voltage, low-current mode, which makes longer distance transmi...view
Conference System Mode in Mobile Internet EraAugust 1, 2022A meeting is a necessary communication activity for people's work and life. It is an organized, led and purposeful discussion activity. It is carried out at a limited time or place and according t...view
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