![]() The in-ear side is where the resemblance goes further. While sensitive, the large face makes it easier than not. The large face also allows for the touch controls to be easily accessed. ![]() A somewhat large faceplate, laden with a gold “swoosh,” gives that face the look of having a Ying-Yang effect. While technologically advanced, the Free will not set the curve for technology, but it is not meant to either.īuilt in a rather bulbous fashion, the Free reminds me of Sony’s WF-1000XM4, shape-wise at least. Giving the Free an almost holographic VR sound environment is the result, and with bass, which is not too overpowering. UM does use bone conduction along with the single dynamic driver, but the piezoelectric bone conduction unit is as much about clarity and detail as head thumping bass. Intoxicating bass was the result, with a detailed clarity to boot. I fell for them and still consider the three amongst my top IEM’s reviewed, ever. My first encounter with bone conduction bass tuning was in the Fir Audio “Element” series. UM went the coating route, with carbon nano coating along with a neat trick: Bone Conduction in Silver Palladium. Some use coatings, some use special diaphragms for a quick speedy response, while others use the sound tubes to generate their chosen flavors. The difference is how those drivers are treated by the individual manufacturers. Much like 2.4L four cylinders rule the roost for many car manufacturers. “Qualcomm® QCC5144 24bit/96kHz high resolution audio, aptX™ adaptive codec lets you hear extreme detail.” From the UM Free page linked above.įor some reason, 10mm dynamic drivers are the norm.
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