KOSS Open-Type Headphones KOSS PORTA PRO Red Hot - Nordic Limited Edition Color [Imported] These headphones were a bit of a topic of conversation a few years ago when Ano-chan wore them. They're called Porta Pro, and they've been a beloved product for over 30 years. The fact that they haven't changed since 1984 is one of the selling points of this product. They are lightweight. According to the catalog, they weigh 60g and are an open-type design. They have a so-called "V-shaped" sound signature. Bass and treble are strong. Therefore, the sound resolution isn't very good. The sound contours are blurred. Because of this, they're not good at expressing delicate sounds like classical music. However, they seem to be a good match for rock, pop, and EDM. As people who use these often say, even though the sound resolution isn't good, the sound is just plain fun. The fact that they're just plain fun is the biggest characteristic of these headphones. They are not at all faithful to the original sound, and the V-shaped sound and imperfections are noticeable, but the sound has a powerful impact. If you find a song that clicks with you, you'll experience a different kind of感動 (kando - deep emotion/impression) than you would with high-end brands like Audio-Technica, Sony, or Sennheiser. I used them for about two or three hours. The effects of aging haven't come out yet, so I think the sound will be different after aging. For those who are looking for something a little different from the common AirPods, those who mainly listen to rock, pop, and EDM, and those who, unlike me, have a sense of fashion and can pull these off. Box, pouch, instruction manual Everything in the photos is included. The box is damaged. Please check photo 9. Two