A promising solution but, from the linked web page…
“Compatible with Windows® 10, Windows 8.1 or Windows 7, Mac OS® X El Capitan, Yosemite, Mavericks or Mountain Lion operating systems…”
No mention of iOS or recent Mac OS!
I was hoping it would also have HDMI output for connecting to hotel TVs (a seperate Talk discussion AirPlay without a router? - #9 by mpainesyd )