The SteelSeries Sibera V2 Headset doesn't offer a lot of extra features, but it is probably the most comfortable full-sized PC gaming headset you could buy.
The SteelSeries Siberia V2 full-size headset is an updated version of the SteelSeries Siberia full size headset.
The V2 features larger (50mm) drivers than its predecessor for 'bigger' sound than the Siberia V1. In addition, the Siberia V2 features a flexible, pull-out microphone that can be retracted back into the headset's left ear cup to keep the Mic safe when it's not in use. This is a particularly handy feature if you travel with your headset.