Built-in power amplifier loudspeaker 50W  The power supply is 12v dc, which is used for the unified power supply of the monitoring camera.Active horn ···

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

infrared motion sensor scream speaker 20WInfrared human body induction is a kind of technology that induces human body activity information by using infrared&nb···

Active outdoor waterproof sound column 20w

Outdoor waterproof active horn speaker 30W

Voice Announcer Wall-mounted speaker 20wPower-on automatic voice loop playback, with 4m memory, single loop playback, or single play once, ceilin···