Here is the budget solution: Get a pair of decent ear buds such as these (http://www.amazon.com/gp/product/B0007N55LE/sr=8-4/qid=1140175404/ref=pd_bbs_4/104-9097524-1642348?%5Fencoding=UTF8). Then wear standard hearing protection ($20) over top. A little dorky but very silent. You must get all black hearing protection or it will look very dorky. There are two drawbacks to this solution: 1) to have a conversation, you have to take off both the hearing protection and the ear buds, 2) ear buds get tiring after a few hours if they don’t fit just right.