DLNA technology

Have you bought a device or some gadget with "DLNA certified " written on its box....

You might be wondering what this DLNA  thing is >>>

 So ,DLNA stands for Digital Living Network Alliance (DLNA).

It is a non profit alliance setup by SONY for sharing of digital media between consumer devices such as computers, printers, cameras, cell phones, and other multimedia devices.
In short by using DLNA you can directly  stream videos ,pictures,songs from your smartphone(say)) to your dlna enabled Television.All you need is both the devices should be on the same internet connection you can use this technology with your other media players or even PC the rule is it should be DLNA certified..
For more detailed info you can refer to this wikipedia article