Powerful Aluminum Loudspeaker Load With Four Driver Units 

Powerful Alum PA Loudspeaker load with four High Quality Driver Units  Air-Raid Siren Speaker has thickened and hardened aluminum shell,which is not easy to rust. This High Power Horn Speaker is IP66 waterproof and sunproof, civil Defense Siren Speaker has high sensitivity, round horn Design, not only small wind resistance, but also conducive to long-distance transmission of sound, strong penetration, loud sound, bright sound quality, high-performance imported strong magnetic.This Air Defense Siren Speaker is suitable for emergency warning of natural disasters, emergency response to emergencies, publicity of policy content, publicity of agricultural science and technology, broadcast of information on getting rich, notification of village rules and regulations, anti-skid slopes on slopes, flood control and flood discharge in reservoirs, and anti-stealing fishing in rivers, lakes, reservoirs, weirs and ponds. emergency broadcast of highway underground pipe gall…