LG G3 - Manual (Page 138)

Tools and Calendar 129
SmartShare
You can use the SmartShare feature easily in the Gallery and Music apps.
Enjoy Content Via a Variety of Devices
You can share your phone's content with a variety of devices.
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Tap to share the content in the Video and Music apps.
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Tap > SmartShare to share the contents.
Playing / Sending
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Play: You can play the content via a TV, a Bluetooth speaker, etc.
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Beam: You can send the content to the device of Bluetooth and SmartShare Beam supported.
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SmartShare Beam: Transfers the content fast via Wi-Fi Direct.