The MiniVox from Anchor Audio is a fully portable public address system that reaches audiences up to 150 for indoor/outdoor crowd control and direction. UHF reception with 16 user-selectable channels and a UHF microphone with a range of 250 feet from the receiver guarantees a crystal clear speaking voice without interference. As an alternative to cumbersome megaphones or unidirectional bullhorns, the MiniVox public address system is capable of delivering 108 decibels of intelligible speech from one, small self-contained portable sound system that's designed for users with no technical knowledge. At an easy-to-carry 5 pounds including its wireless receiver, powered by nine "C" cell batteries, the MiniVox is truly portable and ready-to-go.