Why with WLAN ??

Property me this WLAN gained enabled dashcam to accommodate the traffic behind and use to some extent as a reversing camera. After all, we read in the Amazon product description: "WI-FI live broadcast of the videos on your smartphone" .The with the "Rear View Camera", however, was a fallacy. The images that the camera produces the corresponding Android app uncontested very good, but a joke. The app requires almost 15 seconds to them is ever launched, will appear an indication that you should not use the camera while driving. This notice must be acknowledged manually each time, a "no-longer-show" button is not available for this message. Then you have to select the camera for an additional button. All this is of course for a quick "live view" unsuitable backwards. Thus, the WLAN module translucent, more or less to be suitable only for the configuration of the camera and I do not give as much money out. And one more question: Why can not the supplier of the camera to resolve a note, on which stands the WLAN password? In the enclosed operating instructions I have found nothing. Had first in Google research (password = BlackVue).