This loudspeakers have aluminum hirn bodies. They are easy for installation.
Each of them has strong output, low input impedance and high effect, the trsnsmitting range is far.
Suit for paging system, siren&alarm system, traffic&crowd control by police, indoor&outdoor application publicty, vehicle Installation, high noise areas.
The Yellow Weatherproof Industrial Telephone is an innovative and highly functional communication device designed specifically for outdoor and industrial environments....