This is a rare find for vintage electronics enthusiasts! These Olson stereo headphones have been tested and are in working condition. The brand, Olson, is well-known for producing high-quality audio equipment, and these headphones are no exception. They feature a 6.35mm (1/4 in) connectivity and deliver excellent stereo sound. The grey/black color scheme adds a touch of classic style to these headphones. They're perfect for anyone looking to add a vintage touch to their audio setup.