The pens are difficult to use with multiple projectors of the same model in the same room. What should I do?

• See below.

  Connecting Multiple Projectors of the Same Model

  If you use the interactive features of multiple projectors of the same model in the same room, you need to synchronize the projectors. To do this, connect a stereo mini cable to the SYNC port on each projector.
  1. Connect one end of the cable to the SYNC In port on one projector, and connect the other end to the SYNC Out port on the other projector.
     
     

     Note: If you are connecting three or more projectors, connect the projectors in a chain as shown.
     
     

  2. In the Extended menu of each projector, set the Sync of Projectors setting to Wired.

     Note: If you are syncing multiple projectors with a combination of wired and infrared connections, set the Wired Sync Mode setting to Mode 2 in each projector's Extended menu. If you are syncing using an infrared connection and the projectors are more than 6.6 feet (2 m) apart, set the Distance of Projectors setting to Mode 1 in each projector's Extended menu.