Dell S520 Projector - Manual (Page 84)

84 Using Your Projector
NOTE: If the LAN is used for audio projection, connect the LAN cable
to the projector and the computer. Go to Step 9.
Launch the Dell Projector Connection Manager with Wireless Audio
Projection
7 Once the installation is complete, the program will launch and search
automatically. If the program does not launch automatically, you can
double-click the
icon on the desktop to start the application. Select
the Dell S520 abcd and then click the OK.