1.Flat cable,tangle-free 2.Aluminium housing 3.In-ear design, noise cancelling 4.3 ... :1) Widely apply to iPod/iPhone, MP3/MP4, Mobile phone, PC, Gaming device, CD, etc.2) In-ear design,noise isolation3) Powerful ... ) Flat, oxygen free copper and tangle-free cable.9) Constructed with durable metallic materials, fashion design, oxygen shiny surface, 9 colors ...