Really hold a lot of :)

We bought it for the youth group in our fire department, but prop. They are now more in our assets in use.
The first sample was at a high water use, as a device dropped us into the water shortly glabten we already jetz is it in the A ****, but it continued to run smoothly.

And a few months it against the same, only this time about 1.5m deep was the water and the safe for more than 10 min.
When we picked it out Sense determine no vital signs :). So battery out, screwed and overnight put on an absorbent cloth. Surprise the next day, Switched and resist fully there.

From the range I have to say certainly not 8 or 9 km How touted but urbane funkts. safely easily to 4km.

So from me 5 stars aleine because of the durability.