With a noise reduction rating of 22db when used as directed, background noise is reduced, but speech is not filtered out.
Not suitable for children under 12 years of age.
Tested in accordance with en 352-2:1993

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 7 inch
Height : 3 inch
Length : 11 inch

Item Weight: 0.8 ounce (View shipping rates and policies)
Shipping Weight: 2 pounds (View shipping rates and policies)

ASIN : B0007TBZZ8