I called one months mien own the clock and they really convinced - everything the runner or biker needs. Except for one thing - and that unfortunately destroys everything. The battery lasts far not even the 8 hours which are given "up to", sc with GPS function and RF function, but that's why I bought the clock yes. Now, I wonder, or the manufacturer what he was thinking, so make a good clock, but to let them go just as short. What I do ask, for example at a Transalp or similar adventures ??? Just because I want to know where I went and what exactly heart rate when at which climbs etc. So I have the clock unfortunately have to return again and so there is no star from me yes. :-(
