Slightly bulkier than most over ear headphones so would recommend for home use mainly (rather than exercise or travel) - I wear them nearly all day everyday for work and barely notice they are on and deliver perfect sound time and time again. The shoes fit perfectly! Luckily I was able to use a Dremel to lengthen each hole in the tower that screws into the cross bar. The sound is clear and I dont hear whats going on around me when Im using it. just watched a couple YouTube videos on how to install it it?s not that hard. Started it up - smooth, quiet, all the way. 2-month Update: Still love the trainer and has worked flawlessly. I found this style of shoe, very comfortable. All in all, its a pretty good deal for the price, I honestly think Id buy a second pair in a heartbeat. Somit habe ich mich schweren Herzens dazu entschlossen die Hörer zurück zu schicken.