Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not good reception or Range

I live in the desert in New Mexico, and I have tried these radios in many different areas, from flat to mild hills terrain and high hills. These radios claim to go up to 20 miles (yes, the title of the item says 18 miles, but the product box it says 20 miles). After the extensive testing this my conclusion; the maximum distance I got in an almost flat area was around 5 miles, not even close to the claimed 20 miles, in a an area where there were some small hills the reception got lost almost immediately as you loose sight of the other person, the same for high hills. For you to get good reception you have to be within sight of the other person, in conclusion for one to get the claimed 20 mile range, the circumstances must be perfect, which in most cases where the radios are going to be used for, are almost impossible.