Armstrong two way radio Mountain &valley upto 20 miles range, auto power saver, 10 weather channels, open water upto 5 miles, city or neighborhood upto 1 mile Built-in box functions(3 levels of voice volume)activation for hands free use Key lock function, LED back - lit display and battery gauge 22 FRS (family radio service) channels with scan to check for activity Actual range will be affected by terrain, weather conditions, electromagnetic interference and obstructions