If you expect to listen to music or make telephone call more conveniently when you are running， driving car， walking， etc， you cannot miss this OV-K20MV High-quality Earphones Black which is really an ideal product for sports or other active use! With meticulous craftsmanship， this pair of earphones feature high-quality sound reproduction. With this pair of stereo earphones， you can enjoy maximum sound quality experience. For compact size and light weight， the earphones are also quite easy to carry and comfortable to use.                                    Features            Comfort in-ear sealIn-line volume controlErgonomic angled acoustic design ensures a natural fit3 sizes of ultra-soft silicon caps ensure an ideal fitFoam sleeves create a tight seal for personalized fitPremium metal housing offers accurate sound transmission                                                            Specifications            Speaker diameter    10 mm / 0.4 "    <br>Impedance    32 ohms    <br>Sensitivity    91dB， S.P.L. at 1kHz    <br>Frequency response    20Hz-20，000Hz    <br>Maximum input power    100mW    <br>Cord length    1.8-2.2 m / 5.9-7.2 feet    <br>Plugs type    3.5mm stereo    <br>                                                            Package Includes            1 x OV-K20MV Earphones Black4 x Attachment