Introducing the next generation of 3M/Peltor Communications Headset - The COMTAC VI - an incredible, un-paralleled advancement of the #1 selling law enforcement and military communications headset brand in the world. What's different? "ADVANCEMENT #1." The ComTac VI has a built-in wireless intercom (scroll down to see info-graphs below). Imagine being connected to your portable radio(s) and hopping into a boat, vehicle or HELO and not having to either unplug from your PTT/radio or use an add-on cable to connect to the asset's intercom! And, if your asset isn't equipped with an intercom, you don't need to go to the added expense and aggravation of wiring and mounting a permanent or portable intercom into your asset -- its now built right into your headset!