Bullet point: 
<br />1.9.0mm speaker,make the sounds full and strong
<br />2.Adopt ergonomic design,bullets in-ear design for comfortalbe wearing
<br />3.Adopt hi-fi gold plated plug,excellent sound transmission for pure and clean music enjoyment
<br />4.With chat microphone compatible with iPhone,iPad,smart phone and other mobile device
<br />5.High quality TPE cable
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<br />Product Specification:
<br />Mic Dimensions:4.0*1.5mm
<br />Directivity:Omnidirectional
<br />Impedance:2.2k 
<br />Sensitivity:-42dB±3dB
<br />Driver Diameter:9.0mm
<br />Sensitivity S.P.L):93dB±3dB
<br />Impedance:16 
<br />Frequency Response:20Hz-20kHz
<br />Cords Length: 1.2meters
<br />Plug:?3.5mm
<br />Net Weight: 15g