Originally posted by za gophar
There's lots of ways to block sound-
Sealed, over the ear http://www.headphone.com/guide/by-he...ser-hd-201.php
Ear buds block some sound (and go in the ear)
http://www.amazon.com/gp/product/B00...Fencoding=UTF8
In-ear monitor block more (and go in the ear)
http://www.headphone.com/guide/by-ma.../shure-e2g.php
Active noise cancelling use batteries and a processor to generate cancelling noise
http://www.headphone.com/products/he...er-pxc-150.php
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