What does it do?
The INTENSAFIRE™ modifies XBOX 360 controllers (CG, Matrix and wireless),
allowing them to control 5-mode sleeper settings,
and use customizable user programmable modes.
It uses the existing Sync button to toggle modes,
and on and off. It also enables dual rapid-fire- usable in all XBOX 360 games,
including gamer favorites: Left 4 Dead, the Call of Duty series, the Halo series,
the Gears of War series, and Street Fighter.