There are two versions of presenter receivers that can't be interchanged.

C-U0005

Use the C-U0005 receiver with these presenters:

• Wireless Presenter R400 with M/N = R-R0004
• Professional Presenter R700 with M/N = R-R0006
• Professional Presenter R800 with M/N = R-R0003

C-U0014

Use the C-U0014 receiver with these presenters:

• Wireless Presenter R400 with M/N = R-R0008
• Professional Presenter R700 with M/N = R-R0010
• Professional Presenter R800 with M/N = R-R0009

You can find the model number (M/N) of your presenter inside the battery compartment.

The model number (M/N) of the receiver is found on the back: