I have these PELTOR LEP-200. - and find them fantastic ( block out ALL the crack from a 12B) and various volume levels available ( the green versions are just as good and much cheaper ) - the only variation is I use foam ear buds on the end - not the silicon ones which I find fairly uncomfortable ( I have short ish ear canals) - Highly recommend these an an in the ear option if you need volume assist ( to be fair the old cylindrical £M yellow foamies are actually very good if you dont a bit of muffling of external sound)