What does Region Free mean ?

Hello everyone,

I am looking for a N64 console and I wonder if this "Region free" feature many sellers claim means I can play PAL games as well

https://www.ebay.com/itm/176793825920?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Fi9EXDzyRO2&sssrc=2047675&ssuid=Fi9EXDzyRO2&var=476506833533&widget_ver=artemis&media=COPY