She uses her iPad with her nose - so she's using a remote desktop app to connect to her Mac laptop, in turn using the iRed software to control an IR box, which then controls the TV, Amplifier, and the fan.
Say goodbye to the ugly accessibility remote control boxes!
Step 1: Get an IR box
Lyn uses the IR Trans, USB v3.6 as pictured.
Having typed into Google and had a quick look, I believe she's using this one:
IRT-USB-Mac IRTrans USB Device incl. iRed license for the Mac 99,00 EUR Export price excl. VAT 83,19 EUR
Can be found here: