because i (or the kids) lose or destroy everything portable, i've stopped buying expensive earphones, watches, eyeglasses, etc. ergo, after cycling through shure, denon, etc. i got some skullcandy titan ($20 on amazon), and i tell ya, they're damn good. dynamic, very efficient, good tight bass response. not the ultimate in high end detail, but for listening to mp3 files they're great, esp. considering they're $20. the $50 klipsch s4 do (expectedly) sound a little better, but are as above stated a tad uncomfortable.