Xplayn - Icemat Siberia (later SteelSeries) was the first over-ear (circumaural) gaming headset. It was released in 2004 and was an instant hit in the Counter-Strike community. SteelSeries Ninjas in Pyjamas Natus
Headset Legends of SteelSeries Past | SteelSeries
SteelSeries Siberia v2 Full-size USB Headset by Steelseries 51103-D