A moment of silence, please, for the end of an era. Okay, that era really came to an end with the advent of the compact disc, but, shhhhh. Remember the days when yuppies started jogging the parks with a Walkman on their shorts? When one could finally choose their music-to-go without lugging around a boom box?

Sony’s portable tape cassette player — a revolution when first released in 1979 — has finally reached the end of its production life:

The final batch was produced in Japan in April, and no more will be produced as soon as the current run is sold out. Just over 200 million cassette Walkman players have been sold over the years since being first introduced in 1979.

The Walkman is widely credited with pioneering the concept of personal, portable audio beyond the radio. It helped spur on the cassette as a popular format and also maintained interest in albums. Interest only began to fade in the 1990s when the Discman took over, and saw a more definite end when the iPod was in sight.