Shure AONIC 3-BK, Sound Isolating In-Ear Headphones, With RMCE-UNI cable, 1 Balanced armature driver, Sensitivity: 108 dB SPL/mW, Frequency range: 20 - 18500 Hz, Impedance: 26 Ohm, 3.5 mm TRRS jack for Android and iOS, Inline microphone for phone calls and voice recording, Weight: 20.8 g, Colour: Black, Includes 6.35 mm adapter, Soft Flex and foam ear pieces in S/M/L, yellow foam ear pieces, Christmas tree ear pieces and storage box