The 4MN Planar Speaker reaches up to 650 yards in sound making it perfect for extremely large areas such as wherehouses, universities and college campuses, recreation venues, air ground sea transportation centers, critical industrial or manufacturing facilities, and public gathering spaces. The 4MN Planar Speakers comes with a built in array rigging and 4 drivers. The Planar Speakers are 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. The Clear Voice MN Series creates maximum vocal intelligibility and clarity, even while transmitting that message over very long distances. 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.