OUT OF STOCK THROUGH MID-FEBRUARY!! The Standard of Excellence The David Clark H10-13.4 is the best-selling standard nose-attenuating headset. No other headset. has neeb able to match it for comfort, performance and reliability. Its lightweight design and outstanding comfort features reduce fatigue during flight. Low-profile volume control knob with detent settings guards against accidental volume shifts. Durable contruction includes a molded cord assembly made to exceptional pull and flexx standards. The H10-13.4 is the headset that sets the quality and performance standards for an entire industry.