Presentation Remote on your smartphone with additional Presentation TIMER. Works over Bluetooth or Wi-Fi. Works with MOST programs (PowerPoint, Prezi, Adobe Reader, Google Slides, OpenOffice/LibreOffice). You have to install a remote server on your PC (32 or 64 bit version): * http://goo.gl/XPwZa (32-bit editions of Windows 7, Windows 8, Windows Vista or Windows XP SP3) * http://goo.gl/61DVA (64-bit editions of Windows 7, Windows 8, Windows Vista or Windows XP SP3)If you have any questions please email me at [email protected]