Perhaps the best active ear defenders in the world. ComTac is known worldwide by military and law enforcement, designed to withstand extremely heavy use and fit comfortably under a helmet.
Made in Sweden.
Different options to suit your needs:
Comtac XPI vs. XP: XPI is an updated version of the Comtac XP. The changes are not very dramatic, the beeping sounds have been replaced by a woman's voice that tells you what buttons you're pressing, etc (basically if the XP was R2D2 then the XPI is C3PO). The headband has been slightly reshaped, the pads are now black and feel a bit nicer and apparently, the electronic circuits are now even more waterproof than before.
All this info is based on our own observations and info scratched together from various sources. Peltor has not really made it easy for the end-user to find out what the new, even more, expensive model has to offer, but we´ve done our best to find that out for you.