Radians NRR 21 Lowset Ladies Aqua Ladies. Made with a special patented headband which provides a tighter seal to your eardrums for less noise at your ear. Long-wearing foam seals your eardrums to provide better and more consistent noise reduction without isolating your eardrums which is especially important in the high-definition range. Radians Unified Sound Pressure Technology provides the highest possible NRR while retaining the most natural sound possible. Radians Ear Muffs have supreme comfort that won't interfere with shoulder straps hats or shooting glasses. There's no need to worry about ear wires getting caught in your hair or glasses when you wear your ear muffs. All ear muffs in the Radians line utilize the patented Easy-On/EZ-Off system. This unique feature allows you to remove the ear muff from your head after shooting which allows you to easily clean them without removing your hearing protection. Specifications for Radians NRR 21 Lowset Ladies Ear Muff: Manufacturer: Radians NRR: 21 dB Package Contents: Radians NRR 21 Lowset Ladies Ear Muff Radians LS0820CS: NRR 21 Lowset Ladies Aqua Ladies