The 1MN-Dipole Planar Speaker can reach up to 140 yards in sound, similar to the 1MN but with higher throw distance. The is ideal for schools, universities and college campuses, recreation venues, air ground sea transportation centers, critical industrial or manufacturing facilities, and public gathering spaces. The Clear Voice MN Series creates maximum vocal intelligibility and clarity, even while transmitting that message over very long distances. Designed specifically to meet the extraordinary acoustical and environmental demands of mass notifications, the Clear Voice MN systems are the first choice when long distance clarity and intelligibility are the priorities. This Planar speaker is effective for both mobile and fixed installations. Mobile MN speakers allow for rapid deployment on tripod stands or in emergency vehicles, boats, or aircraft.