With microphone included. Even 10quid cheaper than the equivalent microphone-less version of HF5! Owned 2 pairs of ER6i and ER6 myself. I absolutely loved Etymotic's in-ear headphone which provide fantasic isolation and accurate fidelity.
* Compatible with iPhone and other mobile phones
* Response accuracy of Etymotic's ER-4 earphones
* Highest noise isolation of all competing headsets
* 3.5mm stereo plug makes the hf2 compatible with any music player
* 4ft Cable