Model GM399
Operating Frequency VHF: 136-174MHz | UHF: 403-470MHz 450-527MHz
Channels 255
Operating volts Range 13.2Vdc (10.8-15.6Vdc) Negative vehicle ground
Transmit TX power (erp) 1 to 25W

The GM399 is for professionals who need advanced features. It is a sophisticated yet user-friendly communication solution to enable efficiency in mobile teams. It’s 5-tone selective signalling standards offer users flexibility in programming own "user-defined" signalling standards.