already have several K&F Concept cameras in use. For another corner to be monitored, I have now bought this version, again Wansview, so that you can control all cameras in one app, start live transmission, all alarms at a glance... The functions are very useful as before, Live broadcast, motion alert, microphone, night vision, recording while there is motion, 10 second preview, remote access...etc... What's revised as a feature here is that you don't have to hold down the microphone button to communicate with the person to speak in front of the camera, but like a call, my presses the receiver button and thus establishes a voice connection. The setup is as simple and self-explanatory as ever. The camera can be operated either with the solar panel or with a conventional USB power cable (power adapter is not included). It is nice that the solar panel can be set up separately from the camera, just where more sun is expected. The power saving feature is good. The cam is only in operation (recording / alarm, etc...) when there is movement, otherwise it is in power-saving mode. So, once again a great device at a good price.