This Xit Elite 5500 Auto Slave Flash can be used as a universal flash or slave unit. It comes with a standard round reflector to cover up to 28mm without any dark corners. The reflector flips up or down to alter the light output and it comes with a detachable circular diffuser that softens the light. The head of this flash swivels up to 180 degrees to the left and up to 90 degrees to the right plus it tilts up to 90 degrees for complete bounce control. Requires 4 AA batteries (not included).