Directional sound system category

Classroom Balanced Sound Field System

Classroom Balanced Sound Field System

Campus noise free intelligent broadcasting system

Campus noise free intelligent broadcasting system

Park Square Community Directional Sound Transmission System

Park Square Community Directional Sound Transmission System

Highway and tunnel directional shouting system

Highway and tunnel directional shouting system
 

Supermarket convenience store directional sound transmission system

Supermarket convenience store directional sound transmission system