Originally called the “MDR-3L2,” the first Walkman headphones were known for their sleek, adjustable gray plastic headband, which extended via metal sliders and ended in signature orange, circular ear cushions. The lightweight, on-ear headphones are a contrast to the bulky headsets that are popular these days, which use wide, cushioned headbands for long-term comfort and large earcups that can support big drivers and are often heavily padded for noise isolation.
https://arstechnica.com/gadgets/2026/11/sony-adds-usb-c-to-its-70s-era-mdr-3-walkman-headphones/