This is an open-air clip-hanger clip-type earphone. I opened the package once because I bought it for collection purposes. Please comment if you have any questions. ● High-power neodymium magnet driver unit for high-quality playback of digital audio players, etc. ● Open/close stop-action ear hook that can be easily attached with one hand ● Thin and lightweight housing + new ear hook shape for a secure and gentle fit in the ear ● 0.8m cord convenient for connecting to digital audio players