I summed up the TWS150i thus: “Good battery life, elegant design, neutral sound, great range, reasonable price – what else can one say, except to congratulate Koss that they have succeeded with the TWS150i, solid in-ears that make no mistakes sonically.” And I’d say exactly the same about the TWS250i. However, with two additions, because on the one hand I would like to praise the significantly better precision of the touch controls, and on the other hand, the extremely high wearing comfort, because the TWS250i are really almost imperceptible when in the ear. I would say that the rather discreet bass performance is a matter of taste because the lower frequency range is undoubtedly there and is reproduced precisely – just without that extra half decibel boost that makes up the fun factor. Fans of objective sound will appreciate this very much. Lovers of “sub-in-the-head” experiences, on the other hand, might find it too small (without equaliser intervention). I also sorely missed the option to use multi-pairing, because in modern life it’s pretty common to change players (mobile phone, tablet, laptop, etc.). Even if they don’t do everything right: All in all, these comfy and good-sounding in-ears from Koss score very highly on points, even when considering the recommended retail price of 89 euros.