Multi Position Headband Noise Blocking Earmuffs with 25 dB NRR are ideal for electrical environments and can be used over-the-head, behind-the-head and under-the-chin for more flexibility. Ultra-lightweight earmuffs come with an adjustable crown strap for a secure fit when worn behind the head or under the chin and have black band for added style. High visibility earmuffs include easily replaceable low-cost cushions for more comfort and are suitable for prolonged use.