Sound masking machine

I may be asking the wrong channel but my cousin used to own this machine/radio that would omit a sound of sorts whenever people would converse around it. It reminded me of a sound masking radio hence the title. But I tried searching Amazon but I don’t think that’s right. Because this machine was like always on sleep but turned on, on its own whenever people was around it. It was white and had like a blue light (I think). …

always on amazon asking channel don machine masking may own people privacy radio sound wrong