So me and a few friends were thinking of buying a set of two way radios in order to keep in contact during a music festival, as normally when we go and bring mobiles they run out of battery quickly/run out of signal etc.
Now I have no prior knowledge about two way radios, so I was wondering which one you guys would recommend? The most important thing for us is to have the longest possible battery life, as we will be at the festival for 7 days. Ideally then, I guess a chargeable radio that can also run off batteries would be perfect. As the festival is also very large I think a range of maybe 5km would be necessary.