Wired broadcasting system: This is a traditional emergency broadcasting scheme, which usually requires the installation of wired broadcasting lines and speakers, and is widely used in schools, public places and offices. Its advantages are stability and reliability, comprehensive coverage and suitability for large-area places.
Translation broadcasting system: This scheme usually uses digital signal transmission system and wireless loudspeaker, which can support multi-language broadcasting and is suitable for institutions, education, medical treatment and other places.
wireless network broadcasting system: this scheme uses wireless internet technology, and can be played anywhere with internet access without installing wired speakers. This scheme is suitable for places with multiple branches, such as hotels and hospitals with multiple conference rooms.