> Rich stereo sound "40mm speakers give rich sound and resonant bass
> Noise-cancelling microphone reduces background noise and ensures crystal clear audio quality
> The microphone boom adjusts "ideal for placement for improved communications
> Stowable boom microphone is neatly stored when listening to music or watching DVD
> Convenient controls "in-line volume and mute controls give you full control over your listening and speaking experience
> Lightweight and adjustable headband delivers all day comfort
Credit to leet_first for finding it.