Using Basic Projector Features
When an audio/video source that meets the HDMI CEC standard is connected to the projector's HDMI port, you can use the projector's remote control to control certain features of the linked device.
Example: Projector, audio/video system, and multi-media players connection
As long as the connected device meets the HDMI CEC standard, you can use the HDMI Link features even if the audio/video system in-between does not meet the HDMI CEC standard.
Up to 3 multi-media players that meet the HDMI CEC standard can be connected at the same time.