VM210 uses high-quality driving units, with one 1.4 inch titanium alloy diaphragm high-frequency compression driver for high frequencies. The sound waves are output through a 2.85 inch compressed throat equidistant waveguide horn. Therefore, a single VM210 has a 90 ° horizontal coverage angle. When multiple VM210s are combined into a vertical array for use, the vertical coverage angle of the sound field can be determined based on the angle between the speaker groups.