Using Wi-Fi, images can easily transfer from your camera to your smart devices (Andriod Operation System). You can even use your smart devices as a remote for live view function while shutter speed, aperture setting and focus points information are clearly shown for your easy control.
Check compatible cameras here: http://www.nikonusa.com/en/Nikon-Products/Product/Wireless/2…
iPhone app: https://itunes.apple.com/en/app/wireless-mobile-adapter-util…
Android app: https://play.google.com/store/apps/details?id=com.nikon.wu.w…
Included for free with the Canon 6D :P