is a robust and handy intrinsically safe remote hand speaker microphone with side PTT button. The Titan EX-MM15 is ATEX/IECEx approved and is ideal for users potentially at risk from explosive atmospheres, as in the oil and gas industry or fire and rescue services. The EX-MM15 offers optional emergency button and can be connected to a variety of radio makes and models with a connector of your choice. Ideal for users who require communication without removing their radios from belts, cases or chargers. The Titan EX-MM15 Remote Speaker Microphone is IP67-rated and fully submersible.