You can turn your Android phone in to to complete remote control by using same WiFi with an application called WiFi Mouse Pro 
DescriptionTransform your phone into a wireless mouse, keyboard and trackpad using WiFi Mouse. WiFi Mouse supports speech-to-text as well as multi-finger trackpad gestures. It also support media controller, explorer controller and ppt presentation controller features. WiFi Mouse enables you to control your PC, MAC or HTPC effortlessly through a local network connection.
Features:
* Mouse cursor movement:
Slide on phone's screen to make the PC/Mac mouse cursor make movement.
* left and right click support
Tap the phone's screen to make PC/Mac mouse left button click.
Double fingers tap the phone's screen to make PC/Mac mouse right button click.
* Middle mouse button scroll
Up/down slide the phone's middle button picture to make PC/Mac middle mouse button scroll.
Two fingers slide up/down to make PC/Mac middle mouse button scroll.
* Remote keyboard input:
Press any mobile phone's key picture, PC/Mac will do the same thing.
* PC/Mac hot keys and combination key:
You can press two keys at the same time, such as ALT+F4,Ctrl+C,Ctrl+P and so on.
* Speech-to-text input for all languages:
If you input method support voice input, PC/Mac will show the same text as the phone get.
* Close to proximity sensor to show desktop:
When your hands close to the phone's proximity sensor to make PC/Mac show desktop.
* Mouse & keyboard full screen:
Very big Mouse buttons and key button.
* Remote media player controller:
You can play/pause/next/previous media players, such as Windows media players, VLC,
Winamp and so on.
* Remote explorer controller:
Unified remote control IE/Chrome and other internet explorer, you can close the tab,
go to home page,create new tab, go to favorite list, refresh the current page and so on.
* PPT Presentation controller:
You can start/stop Power Point /Keynote, and turn the next/previous page for presentation.
* Auto-connect on application startup
* PC/Mac window controller:
Maximize/Minimize/close the current window.
* Compatible with XP/Windows Vista/Windows 7/Windows 8/Mac OSX/Linux (Ubuntu).
Gestures:* Tap-to-click
* Tap and move for drag
* Two finger tap for right click
* Two finger scroll
* Pinch to zoom
* Three finger drag or highlight
* Four finger swipe down to show desktop
* Four finger swipe up to maximise current window
* Four finger swipe sideways to change current window focus
* Left handed mouse support (swap left and right mouse click)
* Show desktop when hands over proximity sensor
How to get it workedYou can download the WiFi Mouse Pro application from
hereAfter downloading , you can transfer and install/sideload the application in to your phone.
::::::Make Sure you Enable This::::::
Now download and install
(very small size, less than 1 MB) the respective mouse server for the OS you're using from below:
WindowsMacLinux 32 bit Linux 64 bitAfter downloading the
WiFi Mouse Server run it on your computer, open the WiFi Mouse app
(make sure you're connected to the same WiFi network on your PC/MAC and your phone too) and click on "Auto Connect" now you are able to control PC/MAC with your Android phone !
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