Check out Sensear's SM1R and the various models of popular two-way radios that Sensear has engineered cables for so that the headset is able to be powered from the two-way radio battery with minimal power draw.
SM1R provides integrated two-way radio communications in high-noise environments, with Sensear's award-winning SENS® Technology giving you 360° situational awareness and high NRR ratings of 23-27dB.
SM1R-IS - Intrinsically Safe version
Download the SM1R datasheet by filling out the short form to the right of this page.