CES 2011, Las Vegas - SteelSeries wasn't finished when they announced the Siberia neckband. They've also got a wireless gaming headset on the horizon. Take a look at the upcoming SteelSeries 7XB. This headset is geared towards both the PC and Xbox 360 gamer with its 360-friendly wireless controller plugin.
This wireless headset has a ton of bells and whistles, including 50mm drivers, exchangeable earcups, intelligent wireless which automatically switches frequencies if it detects too much interference, and a sleep mode which automatically shuts down the headset if you lay it down too long. There are three different settings depending on your game: Performance, which focuses on things like gunfire and steps for FPS fans, Immersion for background music, and Entertainment for use during things like TV and movie watching.
The headset takes two AAA batteries that last about 20 hours. Expect it in Q2 of 2011 for $149.99