Wireless Voice Alert System

UHF Wireless Voice Alert System, Band Type UHF, Material Polycarbonate, Channels 1, Output Watts 120mW, Width (In.) 7-9/16, Height (In.) 2-1/8, Length (In.) 5-1/16, 40 Programmable Channels, 154, 1 External Channel Select, Battery Not Included, Operating Range Up to 1/4 Mile, Includes Compatible Portable 2-Way Radio, Ritron UHF, 120mW Transmitter RQT-451, Wired Push Button and 50ft of Wire, For Use With Compatible With Any Other UHF Busniess Band 2-Way Radio