The Ultra Series Advantage is the great comfort and noise attenuation with a Pro Ears Warranty. When situational awareness is not as essential to mission accomplishment. A great pair of passive ear muffs are the most effective means to protect your hearing. Ear plugs can be effective only if they are properly inserted in the ear. Very often, due to discomfort or improper training the ear plug does not provide the level of protection advertised. A comfortable, well designed pair of ear muffs can protect your hearing for years to come.So comfortable you won't mind wearing these earmuffs all day.