CONTROL YOUR PC WITH YOUR SMARTPHONE
Thats where Unified Remote control shines, it has so many remotes for so many apps. It can control many apps like Windows Media Player, Opera, Chrome, Spotify, Firefox, The keyboard, mouse, any media player, and so much more.
The Unified Remote needs to connect to your computer through bluetooth, Internet or wi-fi. And then you good to go.
You can find the Unified Remote app on
the Google play store
Windows Phone Store
PS: you need to download and install the server on your computer from here for it to work