Battery problems described above, I can not confirm. I think it also depends on the duration of the application. When children play with it and every 4 seconds, which moved back and forth sparks, like the battery go out quickly. In my case, the application, multiple vote on meeting and selection of slopes / lifts, a battery in freezing temperatures was enough for 1-2 days.
As for the reception, you should be generally aware of when choosing such PMR radios that they do not have high transmission power and the 10km are possible only when totally unobstructed view. In Ischgl, the ski resorts spread across several valleys. Once you are in another valley as the partner, no longer had the opportunity of receiving. If the contact was not working I'm just down on one of the peaks. Then it usually works and the subchannels had its quasi private channel. Think it in a ski resort, such as in Saas Fee is everywhere without any problems, since it is only a large valley ;-) Who wants more transmit power, must stop switch to CB radio and take a larger portion of money in hand!
The radios have all my falls, the resulting puddle in my breast pocket by fantastic weather and the cold super survived.
A star deduction is only because of the headsets. I would have still preferred a submit button on the cable, because you could then carry the wireless device under clothing on a ski vacation. The VOX function for automatic speech recognition, I have not at first tried, since these are usually annoying.