The ER-1000 is a compact, lightweight, hands-free portable public address system with a rated power output of 6 W (9 V DC when used with six AA-type batteries). The system can be wrapped snugly around the waist and using the supplied headset microphone allows both hands to remain free, making it ideal for such applications as conducting factory tours, directing traffic, instructing in sports facilities, and security-and-safety-related applications.