'It has a limited set of features, but the most used by hams.\n'
              '\n'
-             'This is a first release, so it will contains bugs, use it'
-             'on your own risk, keep a mem backup with the original '
-             'software at hand\n'
+             'All of this radios are able to work a little off the OEM '
+             'frequency limits, by experimentation we set it at ± 4%, '

Please don't use the +/0 symbol. Just say "4% wider at each edge" or
something.

--Dan