Surefire EP4 Sonic Defender Ear Protection

19dB noise reduction rating (NRR) with stoppers in Lowers potentially dangerous noise levels above 80dB Ergonomic design and multi-flanged stem conforms to ear shape for comfort and earpiece retention Low profile design allows you to keep them in place while wearing a mask, helmet, hat Made from soft, hypoallergenic, medical-grade polymer While at the same time allowing the user to hear safe sound levels as if they weren't wearing ear plugs medium Or while using phone, headphones or supplemental hearing muffs