1/4" and 1/8" (3.5mm) analogue audio jacks have had a very, very long life, from as far back as the 1890s. A year or two ago when I found my mother using with h

1/4" and 1/8" (3.5mm) analogue audio jacks have had a very, very long life, from as far back as the 1890s. A year or two ago when I found my mother using with her iPhone an ancient single-ear mono headphone that probably came with a cassette player in the 80s, which struck me as quite funny. Still works fine.