Pro Ears Ultra 33 Passive Hearing Protection Pro Ears Ultra Series passive hearing protection. Ultra high noise reduction rating of 33. Ultra comfort for long term wear. 1 year warranty. Pro Form Leather ear seals, and padded, adjustable headbands are extremely comfortable for long term use. Weighs only 12 ounces. Full cup design for added protection. Available in black, green, pink and Pink Realtree Camo Ships in Certified Frustration-Free Packaging