Perhaps the most difficult section to polish, and perhaps the one that receives the least attention. Among other things because the portable use means that the listening time is not very long, and to a certain extent this conceals the possible shortcomings of a not very refined design. Either actively (the most common and demanded for its effectiveness) or passively, a portable headset must be able to be used in environments with a certain background noise, and this is not something easy to achieve, especially actively, as it tends to influence negatively on the sound result.

It is the most obvious, although over time it has clearly increased in order to achieve more sound quality. However, portability establishes certain natural limits that make transporting it comfortable and easy. Within the portable audio sector, to which we have already dedicated an article previously, we believe that any product should more or less effectively meet certain conditions. Basically I would summarize them in four points, namely:

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