Passive Earmuff, Earmuff Style Full Brim only, Noise Reduction Rating 28 dB, Dielectric Yes, Cushion Material Foam, Compatible Manufacturer Model Number 280-EV6161, 280-EV6161M, 280-EV6161MCR2, 280-EV6161V, 280-HP641, 280-HP641R, 280-HP641RV,...