3M peltor mt Series intrinsically safe 2-way communication headsets are specifically designed for industrial users in noisy environments. Incorporating 3M peltor's technology in both ear cup design and electronics makes this headset, in conjunction with a 2-way radio, the ideal choice for clear, crisp 2-way communication in noisy areas. This intrinsically safe headset allows for use in oil/gas, chemical and other industries where Flammable gases may be present.