Premium Comfort: Weighing just 14.9 ounces, this noise canceling aviation headset has a low-profile and tapered performance ear seals designed to hug the curve of the jaw for a natural fit providing a better (and more comfortable) seal around eyeglass or sunglass frames. Carbon Monoxide Sensor: Built-in Kanari smart alert technology measures aircraft cabin carbon monoxide levels and provides audible and visual warnings at preset CO thresholds. Integrated App: Lightspeed's app smoothly integrates key features CO monitoring, personalized EQ settings, and conversation recording. Customized Hearing: By taking a 12-frequency hearing test in the new Lightspeed app, HearingEQity automatically adjusts your Delta Zulu to optimize every ATC call and conversation specifically for your individual hearing profile. Superior Quiet: Advanced active noise reduction (ANR) performance over a deep, broad range of low-frequency noise for a more comfortable flying experience). Connect to More: Connect directly to other devices for charging, audio, and data transmission via UAC, USB-A, USB-C, 3.5 mm, Lightning plugs, or Bluetooth. Durability & Longevity: Made almost entirely of stainless steel and magnesium with durable cables built around a Kevlar core, the Lightspeed Delta Zulu is designed to endure the harshest flying environments and last for years to come. Industry-Leading 7-Year Manufacturer's Warranty: Lightspeed stands by the quality of the Lightspeed Delta Zulu with a comprehensive 7-year warranty of materials and workmanship. The Lightspeed Delta Zulu ANR aviation headset for pilots is a game-changer in aviation safety and comfort. In addition to unparalelled audio quality and noise cancelation, Lightspeed Delta Zulu is equipped with Kanari smart alert technology which constantly monitors cabin carbon monoxide levels and provides audible alerts for enhanced awareness. The built-in HearingEQity system ensures crystal-clear communication by adapting to your personalized hearing profile, and with the Lightspeed App, you can fine-tune CO alerts, create individual profiles, and record radio interactions for post-flight analysis. The first aviation headset to feature the innovative UAC plug for direct device connection for charging, audio, and data transmissions, the Lightspeed Delta Zulu offers versatility and convenience including the ability to switch between rechargeable lithium-ion batteries or AA battery packs for a combined 50+ hours of battery life. With an industry-best 7-year limited warranty and superior construction (including magnesium ear cups, stainless steel headband, and durable cables built around a Kevlar core), you can fly confidently for years to come. Elevate your flying experience today with the personalized safety and uncompromised comfort of the Lightspeed Delta Zulu.