Ear Muffs, Earmuff Style Over-the-Head, Earmuff Type Rigid, Noise Reduction Rating 25 dB, Dielectric Yes, Radio Band Type No Radio Band, Intrinsically Safe No, Connection Type Wired, Wired Connection Type 3.5mm Stereo Jack, Cushion Material Polyurethane, PVC, Battery Size AA, Cup Color Black, Auxiliary Input 3.5mm Jack, Series VeriShield(TM), Band Color Black, Band Material Polyurethane, Battery Chemistry Alkaline, Features Three Complementary Components, Includes Batteries Yes