Sayang ang tagal nitong thread na to ah walang sumagot.
Para sa mga naghahanap ngayon,
Mack's Hear Plugs!
Around 750 for one pair, includes a small plastic case and a cord (which you don't really want to wear). It's the reusable kind, not the disposable foam ones.
Ang ganda rin ng tunog, it sounds like you mic'd up something, and at the same time lowering the volume.
I wear them when watching gigs and concerts and while playing drums
Available sya sa True Value, dun sa may mga counter
http://www.macksearplugs.com/details/musicians-ear-plugs/hear-plugs-ear-plugs