How would you like to be able to customize your earphones more to the style of listening you enjoy? That’s the idea behind the new SA6 in-ear earphones from Sleek Audio, being shown off at CES and priced at around $250.

The Sleek Audio SA6 earphones offers customization made possible by what Sleek Audio describes as “the marriage of loudspeaker technology and hearing aid science.” Features of the system this “marriage” has generated include interchangeable treble and bass ports, a single ultra-wide band balanced armature driver, “environmental sound control” and detachable swivel cables.