Thunder® Earmuffs  by Howard Leight
• Non-deforming comfort headband fits all head sizes 
• Ventilated inner headband and soft pads for maximum comfort 
• Quick-Click height adjustments • Dielectric design safe for electrical environments 
• Features patented Air Flow Controltm technology for optimal attenuation across all frequencies 
• Snap-in ear cushion makes replacement quick and easy 
Available in Cap Mount in 23 NRR dB, and in Over-Head Models in 26, 28, and 30 NRR dB