The SR875 Electronic Earmuffs guarantee an extreme protection to your hear. As all the SmartReloader electronic earmuffs the SR875 feature a system which automatically shut-downs when the noise goes over 85dB. The cup's shape is great for pistol shooters and for hunters who want a great hear protection. The SR875 come with liquid foam ear cushions and padded headband to guarantee the best comfort all day! The SR875 run 2 x AA batteries (not included).