Long-range high-power four-core horn speaker YD-SX800

Long-range air defense high-pitch speaker, all-weather
waterproof design, four-core speaker, constant voltage and
constant resistance type. Power: 400W, Impedance: 16 ohms;
Frequency response: 70Hz-15kHz; Speaker diameter: 50cm; Size:
490x510x320mm, Weight: 16kg, Coverage area: 1500-2500 meters