AudioMaster Public Address Hazardous Location Speaker, 15 Watt, Gray - 15 watt (AM300GCX) or 30 watt (AM302GCX). 25 or 70 Vrms. Transformer coupled. Re-entrant horn design. Wall mount. 1/2-inch conduit openings. Type 4X, IP66 enclosure. IP69K compliant. UL Listed for Class I, Division 2, Groups A, B