not up and running

The GPS device did not come quickly. As you unpack the first surprise, there was only a 12V - in Car Charger. The connection to the receiver, however, was like an old Nokia mobile phone and therefore I had an AC adapter in the junk box. Charging the battery was then no longer a problem, the startup also looked good, shone the lights for GPS and Bluetooth.
The connection to the computer at first seemed too easily, but the connection broke after a few seconds again. That was it continue. Short term could even be displayed, but the Bluetooth connection was not stable a location. I have returned the unit and ordered a GPS-mouse with USB connection.
It may have been an error in the concrete receiver, my experience with Bluetooth are but somehow always problematic.