I bought the package due to the chest strap because I cherished the hope that this would be my Kettler xrow communicate me e3. This has been confirmed, and the battery is even changeable (unlike the 80-Euro-Arctic-pending). At the hand thing I can not say what - operation rather lousy, I've found, but also seems to run. So for those who need to xrow a wireless heart rate belt is a good and cheap solution. How long does the thing now holds is another question that I can answer only after completing destruction ...
