The arch is easily adjustable and looks solid. The slight cushion in the skull makes wearing comfortable and the same thicker pads on the ears again to ensure a pleasant listening. The headset folds conveniently. Listening now and especially what about the bass boost option? First, the low frequencies are actually developed. On the kick, it is not very noticeable, but the bass lines, it's effective. They become better designed, more velvety. BUT, because he has to but one: is finally desirable. Because we must not fool ourselves, the low frequencies forward, it's addictive but we quickly forget they impinge on the coup treble. So, the guitarist pass. It will soothe his ego, for sure but it is not respecting the mix desired by the artist. Mona Lisa with a pair of Ray-Ban, it may be nice but Leonardo willed without binoculars sun. Do not panic, we can balance the bass boost and mid-level, I'm finally packaged. We are not in the category of Bose but not in the same price range either.