The Predator Gold is a great all around muff. Indoors or outdoors it provides the best in comfort, reliability and performance. The NRR is 26 and best suited for a moderate noise environment while our exclusive DLSC Technology has the fastest response time in the industry at 1.5 milliseconds. Military grade dual circuit boards ensure a rugged and reliable pair of ear muffs, no wires to break or get snagged. ProForm leather ear seals and a well-padded headband with memory foam are made to give you maximum adjustability and comfort for your hearing protection, even if you need to wear it in hot or cold environments and for long periods of time.