Bogen's LU30WR70VH Horn does the job when 360-degree sound dispersion pattern is required. The LU30WR70VH Horn produces high sound levels, and is capable of covering large, noisy areas. Minimum effective mounting height for the horn is 15 feet (20 feet is preferable). Features 30 watts, 300 Hz - 14 kHz frequency range with 360 degrees dispersion. LU30WR70VH Horn has a sound level of 113 dBspl (@4' on axis) . It comes with a metal chain suspension cable which is 10 inches long.