The David Clark H20-10 headset uses advanced composite materials making it extremely strong, light (19 oz.), and comfortable! David Clark's Custom Comfort System employs several improved features that make this unique headset a pleasure to wear. Includes a patented, supersoft “floating” headpad for maximum cushioning and extra thick, contoured gel ear seals for a quiet, comfortable seal. The adjustable headband uses locking clips for a secure, precise fit without being too tight. Features a fully flexible boom and high-quality, M-7A electret microphone. NRR 22dB, TSO'd.