David Clark Wireless Headset-Mic Shield

The H9910 is a wireless, over-the-head, dual ear headset designed for use in demanding environments such as airline/airport operations, fire/rescue applications, marine intercom, or any high-noise area requiring robust, reliable, and secure communications. This headset is part of the David Clark Series 9900 and features a noise-attenuating microphone shield, making it optimal for noise environments up to 140 dB. The H9910 provides crisp, clear communication and is designed for use with David Clark Wireless Belt Stations.

FEATURES
• Noise-Canceling Microphone: M-2H type dynamic noise-canceling microphone mounted in a noise-attenuating mic shield, includes radio PTT/VOX override button
• Dual Ear Design: Dual dynamic earphones with titanium nitride drivers and stainless steel retainers for high-quality audio
• Comfortable Fit: Undercut, comfort-gel ear seals provide unsurpassed comfort and enhanced noise attenuation
• Adjustable Headband: 4-chamber, air-flow pillow headpad affords long-term comfort and eliminates “hot-spots.”
• Durable Construction: All hardware is marine-grade stainless steel for rust/corrosion resistance in harsh marine environments
• Volume Controls: Dual water-tight volume controls for variable left/right gain setting capability
• Secure Mic Shield: Snap/strap assemblies secure the mic shield to the user’s mouth for hands-free communication
• Extended Coil Cord: 6-foot extended coil cord with military-grade, 7-pin Belt Station connector

BENEFITS
• Enhanced Communication: Ensures clear and reliable communication in high-noise environments, critical for safety and efficiency during demanding operations
• Superior Comfort: Designed for long-term wear with features that reduce pressure points and provide a secure, comfortable fit
• Wireless Mobility: Provides maximum freedom and mobility for users, enhancing safety and performance
• Durability: Constructed to withstand the rigors of demanding environments, ensuring long-lasting performance
• Noise Attenuation: Certified passive noise attenuation rating of 26 dB, providing effective hearing protection

SPECIFICATIONS
• Weight: 20.4 oz (578 g)
• Comm Cord: 6-foot coil with MAP-57-50 connector
• Certified NRR: 26 dB (3rd party certified)
• Dome Type: Hybrid, ABS
• Hardware: Stainless-steel (18-8)
• Potentiometer: 220 ohm +/- 20% (2 each)
• Push-To-Talk Switch: Momentary - Single Pole, Single Throw
• Ear Impedance: 35 ohm +/- 10% @ 1 kHz
• Ear Sensitivity: 100 dB SPL/1 mW @ 1 kHz
• Ear Frequency Response: 20 Hz to 20 kHz
• Mic Impedance: 5 ohm