You can use your energy ray (sonic) psi-like ability more often.
Prerequisite: Maenad.
Benefit: You can use the energy ray (sonic) psi-like ability granted by your maenad heritage three times per day.
Normal: A maenad's energy ray (sonic) can be used once per day.
Special: You can gain this feat multiple times. Each time you take this feat, you gain two additional daily uses of your energy ray (sonic) psi-like ability.
Source: Complete Psionic, page 55.