1.High quality earphone with UV coated 2.Aluminium housing 3.In-ear design Specifications:1.Driver Unit: Ø14mm.6u2.Sensitivity: 102dB±3dB3.Impedance: ... MP3/MP4, Mobile phone, PC, Gaming device, CD, etc.2) In-ear design,noise isolation3) Powerful neodymium magnetic bass driven ... sound.4) Only ±1.5dB deviation of two speakers,protect hearing.5) Add ...