The Skinny : This walkie - talkie work Garmin Colorado GPS unit is meant to be used when you ’re out in the wild ( tramp or sportfishing ) and call for to know details like how high the terrain is and whether you ’re in water or not . It ’s got a 3 - in screen , and has different interpretation for different needs .
The 400 t has 3D height , 400i has shoreline detail and boat Allium tricoccum , 400c has mapping of the coastal US and the Bahamas , and the 300 has a world basemap for Richard Branson and his like . They get 15 hours of sprightliness on two AA batteries , and will be uncommitted for $ 499 ( 300 ) , and $ 599 ( all the other one ) .
The apprehension : These only work if you make certain to take enough bare Alcoholics Anonymous stamp battery with you when you go out . Plan on getting lose for a couple days and pack accordingly .
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