It is delivering very clean and open vocal sound , with a strong sense of clarity and detail. High frequencies feel spacious, I don't find it problematic as it is sometimes described as - not even for male vocals, it sounds really present, real. I personally do not notice any special or distinctive plosive issues or sibilance... It is well-defined, giving the voice articulation without sounding dull or veiled. Interesting; I do not hear any audible difference between the wired and wireless versions between vocals nor instruments.