1.
9 km range, who needs that? I have tested with Kolegen how far it really goes. In the city were 3 to 5 km is no problem, but then catch a noise. But I also had a noise after about 700 meters, which depends on the environment.
As my learner but usually always go in front of me, everything was always in very good quality. Also at about 130 km / h no problems.
. 2
The battery lasts exactly one day. I turn on the radio at 8 clock, and Dan to about 21 clock in continuous use is no problem.
Conclusion
For normal use, an optimum device.
If these are broken 4 times, then buy back the same.
