I bought the radio mainly for convoy driving on the highway. There has also worked well, but I have to say, we are not driven as up to about 750 meters apart. Which in turn is very positive that the closed car contact the radios among themselves does not bother. Furthermore, we used the radios at a campsite. As is known, there is not a very big houses or the like. But to disturb the radios that you got to hear themselves rushing a distance of approximately 500m almost exclusively, also submitted before the few tents, wash houses and caravans. This was a great pity. Battery life was very surprised. We had the radios out only at night and have tabs radioed every day again and again. The batteries have always held about 3 to 4 days !!!!! Excellent !!!