Description: The new Mi Earphones adopts the coolest hybrid technology which is the combination of one dynamic driver and two-way balanced-armature (BA) drivers, and their relative position to each other in the housing, allowed us to develop the smallest three-way in-earphones that offer a true reference-quality sound. The balanced-armature will be handling on high frequency audio while dynamic driver will handle the low frequency audio thus providing a more 3D surround effect. Highlights: Original Xiaomi in-ear hybrid dual driver earphones Dynamic and two balanced-armature drivers, for detailed sound More professional tuning mode with super fine and sophisticated design Cable control high SNR 58dB microphone, better noise cancellation for clear calling quality Come with 3 pairs of S / M / L size soft silicone eartips for comfortable wearing experience Hybrid name comes from special configuration of speaker inside, which provides a dynamic driver and second dual balanced armature driver.The two designs are offset from one another, the dynamic driver is of course best suited to handle the bass, while the balanced armature, which moves air to generate sound, will take care of high and medium. The microphone has high SNR 58dB, better noise cancellation which indicate you will have a better call quality. You do not need to place the microphone near your mouth and speak to it loudly anymore. The microphone on the earphone is designed nearer to the face. This earphone is made up from Kevlar material a synthetic fiber of high tensile strength used especially as a reinforcing agent in the manufacture of tires and other rubber products and protective gear such as helmets and vests. Just like other Mi Earphones, you are provided 3 sixes XS, S and L ear tips. We are using soft material so your ear feel comfortable despite listening for a long period of time.