Active horn speaker 10WDC12V active waterproof active horn speaker security monitoring independent Intercom voice broadcast system (network camera, video record···

*Integrated design of digital network decoding module and column speaker, aluminum alloy waterproof and rust-proof housing structure; *outdoor column speak···

human body induction voice Wall-mounted  prompter 6WInfrared human body induction is a kind of technology that induces human body activity information by u···

Active treble speaker 30W  Used for broadcasting programs in parks, squares, highways, safe cities, tunnels and other places; External audio signal in···

*Integrated design of digital network decoding module and column speaker, aluminum alloy waterproof and rust-proof housing structure; *outdoor column speak···

Voice Announcer wall-mounted speaker 6WPower-on automatic voice loop playback, with 4m memory, single loop playback, or single play once, ceiling···