What do you mean by ring? Because at home in the late 1990's, I remember we had some kind of 3d ring mouse that worked with ultrasonic motion trackers clamped t

What do you mean by ring? Because at home in the late 1990's, I remember we had some kind of 3d ring mouse that worked with ultrasonic motion trackers clamped to the monitor. It was either this (the Kantek Spectrum Ring Mouse) or something almost identical: https://www.microsoft.com/buxtoncollection/detail.aspx?id=19 https://www.microsoft.com/buxtoncollection/detail.aspx?id=19 From what I remember, it didn't work too well. Or it wasn't worth the gorilla arm. I was only using it for clerical work and maybe some gaming.