Halo Sport 2 comes packaged with Closed ear pads, which help to reduce the noise around you. (Please note Halo Sport does not have active noise canceling or noise isolating technology.)
In our accessories store, we offer Open ear pads for purchase. The Open ear pads allow you to hear surrounding noise and can be used when training with other people (so that you can hear them) or when training on a musical instrument.
Check out this article for an explanation of how to change your ear pads.
tags: earpads, ear pads, holes, solid, open, closed, replace, switch, change, swap, cancellation, sound