techPowerUp posted a review on the Sleek-Audio SA6 Earphones
A quote from the article:
>> Sleek-Audio SA6 Earphones Review
Sleek-Audio SA6 is the name of a brand new pair of earphones with customizable performance. The earphones feature both a treble and bass tuning system that allows the user to alter the audio performance according to their needs and preferences. This is not done via electronics as one might expect, but by physically replacing parts of the earphone.
>> Sleek-Audio SA6 Earphones Review