We are so excited to offer this GEL-008 3.5mm Universal Flat String Earphone Headphone with Microphone Black to you! Its ergonomic design offers much comfort and guarantees the best play and transmission of music or voice. High quality flat string is durable for long-term use. Besides， universal use design with standard head makes it more functional and accessible to many types of cell phone featured with 3.5mm port. Would you like to enjoy fair-sounding music? No more hesitation to get one for yourself!                                    Features               <br> Flat string， lightweight and stylish<br> Ergonomic design， comfortable to wear and with more wonderful ton quality<br> Advanced technology in echo cancellation & noise reduction ensures exceptional sound quality<br> Experience less vibration but more fair-sounding melody of your music<br> Built-in microphone will greatly embellish tone quality<br> Show your unique personality as well as bring you pleasant enjoyment <br>                                                            Specifications             Headphone Jack     3.5mm    <br> Weight     0.38oz / 11g    <br> Cable Length     47.24" / 120cm      <br> Color     Black    <br> Compatible with     Universal    <br> Impedance     ≤32Ω    <br> Frequency Response     20Hz-20KHz    <br> Model     GEL-008    <br> Mic Dimensions     Φ6.0 x 2.7mm    <br> Directivity     Omndrectional    <br> Sensitivity     105DB±3DB(S.P.L)， -116DB±3DB(M.I.C)    <br> Driver Diameter     Φ10mm/6u     <br>                                                             Package Includes            1 x Earphone Parameter<br>