Over-the-head earmuffs provide a noise reduction rating (NRR) at 22 decibels in a lightweight, low-profile design for comfortable protection against low-level industrial noise and other hazardous sounds. Electrically insulated, wire headband keeps consistent pressure as you work through tasks to deliver an enjoyable fit over prolonged wearing periods. Earcup pivot points tilt to ensure you maintain an effective seal around your ears for reliable protection. Ear cushions and foam liners are replaceable for long-lasting efficiency. Adjustable guides help you easily move the cup position while the earmuff is on your head for simple adjustments. Durable ABS cups with soft overmolding perform well in tough work conditions.