LG Optimus G PRO is an NFC-enabled mobile phone.
NFC (Near Field Communication) is a wireless connectivity technology that enables two-way communication between electronic devices.
It operates over a distance of a few centimeters. You can share your content with an NFC tag or another NFC support device by simply touching it with your device.
If you touch an NFC tag with your device, it will display the tag content on your device.
To switch NFC on or off
From the Home screen, touch and slide the notification panel down with your finger, then select the NFC icon to turn it on.
To use NFC, make sure your device is switched on, and activate NFC if disabled.
When this feature is turned on, you can beam app content to another NFC-capable device by holding the devices close together.
Just bring the device together(typically back to back) and then touch your screen. The app determines what gets beamed.