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"Possibly setting the record for most interchangeable pieces in a set of earbuds, the SA6 from Sleek Audio packs a number of features unique in the high-end headphone market. Using \"treble tips\" and \"bass ports\" that can be swapped out, Sleek claims that the single-driver SA6 rivals the performance of two- and three- driver models from competing manufacturers by offering frequency response that can be tuned to the listener's preference. Also unique is the set's cord, which disconnects right at the bud -- allegedly for a potential upgrade to A2DP down the road. Look for the SA6 in March for $250 ($230 on preorder)."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.engadget.com/2007/01/07/sleek-audios-sa6-earbuds-with-adjustable-acoustics/?ncid=rss_semi>