The XTreme is a specialty hard hat compatible ComSTAR headset that features miniaturized wireless circuitry and antenna installed right inside the ear cup. ComSTAR said that it believed this streamlined "All in One" design was a breakthrough, eliminating the need for cables and belt pack transceivers.

ComSTAR operates within the DECT, 1920 – 1930 MHz band allocated by the FCC for voice communications only.