On the last page we find the ST1000 Stereo Radio and Cassette Player.
The ST100 was popular in Model Homes, Doctor and Dentist offices, and for background music in office hallways.
NuTone even had a wireless Intercom, the IM110. The IM100 was different than most other wireless, table-top intercoms of the day. It sent the wireless communication through the plug lines (it is a plug in model) instead of send it as radio waves through the air.
I used these for years, they work very well