Champion Small Frame Passive Muff Blue. These ear muffs are specifically designed to fit smaller heads also included are a comfortable headband for all day enjoyable wear. Offered in a variety of color choices have fun picking out your your preferred color. With an Noise Reduction Rating (NRR) of 21db rating you can have the peace of mind of adequate hearing protection with these Champion small frame ear muffs. Package Contents: Champion Small Frame Passive Muff Champion 40992: Small Frame Passive Muff Blue