Posted by a reviewer on Amazon

Ive read other reviews and they stated you need the seal to hear the base

Posted by a reviewer on Amazon

They have slightly better sound isolation and the rubber cables seem a little quieter when they rub vurses the hard plastic on the er4s

Posted by a reviewer on Amazon

If you ride a motorcycle i recommend you get these and get the custom ear pieces

Posted by a reviewer on Amazon

Edit having now tried them he loves them after playing around with the different ear pieces it comes with

Posted by a reviewer on Amazon

When music is not playing they work just like an ear plug in that they attenuate outside noise

Posted by a reviewer on Amazon

Once the music starts you will be in your own world and only loudest of noises will break you out of it

Posted by a reviewer on Amazon

Note for you spec people the frequency response reported by the speakerearbud manufactures often means nothing as they dont quote where or how they are taking the measurements i

Posted by a reviewer on Amazon

A 2nd issue with frequency response is that inear buds need to take into account the frequency filtering your outer ear has on sound