Straight from the O2 site:
# New unique 3D-Axis folding mechanism
# iPhone® compatible
# New soft ear pads for comfortable fit
# Single sided cable
# Ergonomically designed integrated volume control
Bought a pair, and really like them, the fit is comfortable, and they I am impressed with the sound quality! Quidco tracked at £4.80, which will make them a bargain at £27.20
These are £49.99 at most retailers!