Noise reduction rating 30 dB. Extreme comfort. Ultimate comfort for women. Smaller, softer and contoured. Sleeping, reading, loud events, travel, etc. Free travel case. No 1 doctor recommended. Soft, high performance noise blocker. Provides ultimate comfort for women with small or sensitive ear canals. Noise reduction rating 30 decibels (when used as directed). The range of noise reduction ratings for existing hearing protectors is approximately 0 to 30 (high numbers denote greater effectiveness). Federal law prohibits removal of this label prior to purchase EPA label required by USEPA regulation 40 CFR part 211 subpart B. CE listed. www.MacksEarplugs.com. Recyclable package. Made Sweden.