Sennheiser S1 Passive Noisegard Pilot's Aviation ANC Active Noise Compensation Headset Prod Code: 505572
New & Boxed With Accessories as Pictured
The Sennheiser S1 Passive Noisegard-R (Part No. 505572) The Sennheiser S1 line is a premium series of aviation headsets originally developed in collaboration with BMW DesignworksUSA. The S1 Passive is the purely mechanical, non-battery-powered version in the lineup. It
Passive Noise Protection: Blocks continuous engine and cockpit noise using physical clamping, ear cup shape, and viscous ear seals rather than digital circuitry.
Adjustable Clamping Pressure: Features a 3-step headband tension adjustment, allowing for up to a 30% variation in contact pressure to suit different head sizes and reduce fatigue.
Eyeglass Zones: Specially designed ear seals that have "comfort zones" to relieve pressure on eyeglass temples, allowing glasses wearers to maintain a proper acoustic seal.
ActiveGard Technology: A protective feature built into Sennheiser aviation headsets that safely compresses sudden volume peaks over 110 dB, safeguarding the user's hearing.
Auxiliary Inputs: Unlike many basic passive headsets, it includes a control box with auxiliary audio inputs for cell phones and MP3 players, complete with automatic muting when receiving air traffic control (ATC) calls.