50W High Power Megaphone Loudspeaker

ABS material, with function: Propaganda, alarm, recording (240 seconds), USB card plug. Power and propagation distance: 50W, 1000m/3300ft. Battery: 8 Battery No.2 or special lithium battery (not available, sefl prepared or purchased separately). Ideal for Football, Baseball, Hockey, Cheerleading Fans & Coaches, Referees, Safety Drills, Camping, Boating, schools, and other large-scale outdoor activities and also for Disaster relief and rescue, public security and fire protection, or other commercial uses