This is the GE Folding Headband Earmuff Protection with 26dB NRR (Noises Reduction Rating). Features a cushioned headband for maximum comfort, soft padding on earcups that provides maximum comfort and protection from noises, adjustable earcup pivot points tilt for wearers comfort, and Stainless-steel strong wires. It meets ANSI S3.19-1974 Standard.