Magnesium Alloy Headband and Suspension. Forward-thinking, ergonomic design provides a lightweight, yet rugged platform. Evenly distributes headset weight for added comfort and is fully adjustable for a personal fit.Adjustable Suspension Assembly. Fully adjustable suspension assembly integrated with headband for personalized fit and comfort.Leatherette Head Pad . Ultra-soft leatherette head pad with breathable, vented design virtually eliminates ‘hot spots’ and keeps top of head cool during long fights.Swivel Hinge Stirrups. Disperse clamping pressure for secure yet comfortable fit and allow headset to conform to the sides of the head.Leatherette Ear Seals. Plush, Dura-Stitched leatherette ear seals with slow-recovery 'memory' foam cradle you in comfort. Round, supra-aural (rest-on-ear) design reduces heat buildup to keep ears cool, even during longer flights.Hybrid ENC Technology. Provides best-in-class active noise reduction with leading-edge ‘feed-forward’ and ‘feed-back’ technology. External microphone on dome picks up noise from the outside, before reaching the ear canal for superior noise attenuation.Dual Voice Coil Drivers. Provide Fail Safe operation to ensure full communication in the event of battery loss or system failure.Digital Signal Processing (DSP) Technology. Ensures high-fidelity audio for superior communications and music listening.M-55 Electret Microphone. Offers enhanced noise reduction for crystal clear voice transmission. Full flex boom for precise microphone placement.Bluetooth® Wireless Technology. Affords seamless integration for connecting to cell phones, MP3, tablets or other personal electronic devices.Collapsible Design. Smart headset design collapses for compact storage in David Clark headset bag.Headset Bag. The DC PRO-X comes in a rugged nylon, David Clark Company branded headset bag with shoulder strap.