Maybe the camera gets cold. March 13, 2017Junk. I will be returning it. It won't connect and the instructions were wrote out of the US so hard to read and understand. March 13, 2017 Another affordable yet feature rich option is the WiFi Doorbell Security Camera by renowned electronics company, Xenon. Not only will it let you see who’s at the door, it will also allow you to talk to your visitors, as well as alert you when something is amiss while you’re away from home, via motion detection. This WiFi video doorbell is an easy to install system that you can connect to your existing doorbell, allowing you to easily communicate with the person at your door. It’s one of those DIY installations that don’t require a lot of effort to set up, saving you the trouble of hiring a professional to install it in your home. It has an impressive 720p HD video resolution, as well as great night vision that lets you see things clearly even in complete darkness. Just like the Xenon WiFi Doorbell Security Camera, the ValJax Wifi Video Doorbell also comes with motion detection alert using PIR, which alerts you whenever there’s a guest at the door or when motion is detected. The model also comes with impeccable audio quality, with a handy intercom that lets you speak to visitors from your mobile device.