FSL Gunblock Earmuffs - 29dB Shooting Ear Protection (Gray) High quality materials provide a luxurious feel and make these ear defenders built to last Cups slide along headband to accommodate different head sizes, and muffs fold easily for efficient storage SNR is 29dB and NRR is 26dB to protect your hearing Comes in easy-to-open, eco-friendly frustration free packaging Includes 3 year warranty and unrivaled lifetime support from Futuresoundlab's dedicated brand website