Slip-on means no bending over to wear. The small cone is too small and the large is too big, hurts my ears. Having used wheels/pedals/shifters off and on for a long time, i just CANT RECOMMEND this product. Highly recommend It! unlike last years which were stretchy and amazing. Also I like that Anker have come up with an original design and colour which is very dark matt grey as opposed to a lot of other models on Amazon that all look the same cheap glossy black. DT770 (emphasises sibilance - which so can be avoided before recording, recessive mids an issue -vocals sound distant - though when recording asking your vocals to be closer to the mic is not usually a bad thing). These trim covers give my W205 a much sportier look. It reminded me of an old power course that I had, when I was younger. Mom OTd them by using thick round make-up sponges within the inner ear section & now they are perfect.