Description: Integrate two acoustic patented technoligy:Variable tuning devices and buit-in cell,creat high-end sound quality. Detachable sound chamber out,the main chamber form the structure could be separated.using different styles of sound chamber,it can make some kind of musical styles. Significance of multi-angular surface design,made of pure copper carved. Full-directional noise reduction,compatible with most mobile phones 56 core custom grade HFI wire. It will give you a new hearing texture, toothless sound, and the sound knot like feeling extremely rich. Specification: Style:In-Ear Cable length:1.2 M( ±3CM) Connectors:3.5mm Rated Power:2mw Color:Black Use:Mobile Phones/computers/mp3/mp4/tablents Package Includes: 1 piece headphone 1 pairs earbuds