You might remember growing up with walkie talkies, well today they are called two-way radios. I remember going to Radio Shack to look at their selection of walkie talkies as a kid and always dreaming of having a high powered military set that had ranges of over a mile. Today almost all two-way radios have ranges from 1 to 2 miles and they are much smaller than the ones we had a decade or so ago. Two-way radios are very useful - they are great for long road trips when taking separate cars, on the ski slopes, at amusement parks,...