Original Xiaomi Mi Hybrid Earphone, Mi In-Ear Headphones Pro, 1 More Multi-unit Circle Iron Earphones NOTE: The volume button CAN'T work for iOS. 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