You can now control the camera on your Windows Phone device by giving vocal commands to your Microsoft Band. This is possible thanks to the app, Band Camera Control. After installing the app, just press and hold the action button on your Band and say commands such as ‚Camera take a photo‘ or ‚Camera take 4 photos in 5 seconds.‘ We tested it out on the Lumia Icon and it actually worked.
More details: http://www.windowscentral.com/band-camera-control-snap-photos-microsoft-band