CB radios have 40 channels ... UHF radios differ in terms of range, which is usually measured in miles or kilometers. Some FRS radios and GMRS radios use AA or AAA batteries. Others use NiMH ...

The difference between 2-way radios and CB radios is deceptively simple since ... Walkie-talkies often operate on FRS mode (Family Radio Service), which tends to reach up to around a couple ...