I’ll admit these are probably less capable than what many people here are looking for but they fit our needs pretty nicely. They’re small, easy to use, and they’re easily carried and packable, they charge with USB, they’re inexpensive and easily replaced. We tried them out in Yosemite in the early summer and I was pretty satisfied with the range. We were talking pretty clearly with each other at a range I would guess of 3-4 miles.
In a bug in or bug out situation I think they provide plenty of range to venture out and explore if traveling by foot. My thought is if radios are necessary then this means cell service is out and the grid is probably down too, so there won’t be much competing interference from other radio sources like cell phones and home WiFi networks. Which would make it easier for low powered radios like these.