8mm dynamic drivers provide punchy bass and rich mid-range Stylish design with CD pattern highlights the craft and texture Omni-directional and high-sensitivity microphone ensures the clarity of phone calls Three-button in-line control for easy operation from music to calls Compact and lightweight design for all-day comfortDriver unit Φ8mm dynamic driver Frequency response 20Hz-20kHz Impedance 21Ω Sound pressure level 102±3dB Microphone direction omni-directional Connector 3.5mm/4 pole/straight Cable length 1.2m±5cm