The AIAIAI TMA-2 S02 Speakers are designed with an internal vent which allows the middle bass to be more clear & punchy. Great for picking up the beat the S02 speakers are engineered with a titanium coated driver to reduce distortion. The Speaker Unit housing is injected moulded from durable ABS material & coated with rubber to give a matte look with a soft feeling & a gradual dip towards the high frequencies prevent listening fatigue.