Electronic Ear Muffs, Earmuff Style Over-the-Head, Noise Reduction Rating 22 dB, Dielectric No, Radio Band Type AM/FM, Connection Type Wired, Cushion Material Polyester, PVC, Battery Size AA, Cup Color Green, Auxiliary Input 3.5 mm Jack, Includes 120V Charger, Series QUIETUNES (TM), Standards ANSI S 3.19 -1974, Band Color Black, Band Material PVC, Battery Chemistry NiMH, Features Automatic 4 hr Shut Off, Number of Batteries 2, Battery Type Rechargeable. This item has been restricted from sale in the following state (s): []