We use the radios in the device for communication between the main building and the "container branch". This is about 50 meters, between them is a lot of free space with a few bushes and small trees. So I can not say anything for power over long distances. But over the short distance radios are perfect. Clear voice quality, very little background noise and (very important to us) for easy operation. As for the "establishment" of the devices, which, incidentally, was very simple (channel selection, code selection, completed), only the "Talk button" must be pressed to send what it's for no employee a problem so deal. However, one should bear in mind that you only have to press the button, short wait (about 1 sec) and then should speak first, otherwise the first words are not sent (probably needs to connect some). Again to transmit power: In the main building all works very well (multistory, concrete and reinforced concrete walls / ceilings). The included charging cradle serves us primarily as storage space after hours. We just stuck to the power when the radios are all in order to prevent a memory effect in the battery. A charging need about 14 hours (overnight is not a problem).
CONCLUSION: Very well suited for our application. Fulfill its purpose perfectly and are very handy (portable by supplied belt clip to the belt, do not fall in).
