1,3.5mm airline headphone 2, MP3/MP4 earphone 3, ISO 9001 2000 Certificate 4, ... 5, OEM/OBM/OD 3.5mm airline headphone with customized design and logomobile phone stereo headphone for nokia ,iphone,samsungExcellent sound quality ... mini design 3. fast delivery4.It suit for mobile phone/computer/MP3/MP4;5,environmentally friendly,meet ROHs standard6,advantaged price ...