I received my new Sony DSC-RX100 II (also known as the RX100M2) camera a few days ago and am getting familiar with its new features as I work on my guide book for this updated model. (I hope to have the new book finished by late September or early October.)
One of the major enhancements to the camera, as compared to the original RX100, is built-in Wi-Fi capability. With this feature, the RX100 II is able to connect to a computer, smartphone, or tablet for transferring images. Also, you can use a smartphone or tablet to control the camera remotely, to a limited extent. Specifically, once the connection is established, you can use an app on your phone to see what the camera is aimed at, zoom the lens in and out, turn the flash on or off, activate the self-timer, and capture a still image or video.
I tried out this function over the past couple of days using my iPhone 5 and I have put together a video that shows how it works. The video ends with some footage of hummingbirds that I took with the RX100 II while I was controlling it with the iPhone. Being able to control the camera from a distance seems to be a helpful way to get images and videos of birds and other wildlife that might be scared away by seeing a human standing nearby with a camera.
Here is the video, as posted today on YouTube: