Hearing Protection - Sigma ElectronicManufacture ID: 110042Smith & Wesson Sigma Electronic Ear MuffFeatures:- Folding compact design- Fixed padded headband- Adjustable cushioned ear cups- ANSI S3.19-1974 Rated- Amplifies low level sounds- Compresses high Db noises- Uses 4 "AAA" batteries (Included)- 20 NRR noise reduction