Rename Input Source

[Wiimer]

Hi, all.
When I opened WHA for the first time in a long time, I was able to change the name of the input source. I don't know when this appeared.

What kind of device is "Recorder player" ?
(I know it's a dumb question. )

 

[Brantome]

Around September according to this https://faq.wiimhome.com/support/solutions/articles/72000590455-release-notes-for-ios-wiim-home-app