Protect your hearing, don t miss any radio calls, and be certain your transmissions are heard with this feature-rich, value-priced headset: * Earcups of high-density acoustic foam for best passive noise attenuation * Has noise reduction rating (NRR) 23 dB * High fidelity speakers for clear, natural sound * Electret, noise-canceling flex-boom microphone reduces background noise and allows clearest voice transmission * Gold-plated microphone and headphone plugs ensure best connection and resist corrosion * High-grade, multi-strand wire improves cable life * Stereo/mono capability * Large, dual controls for quick, easy volume adjustment of each ear * Microphone muff * Adjustable headband with easy thumb screws eliminates "hot spots" and accommodates eyeglasses and any head size * Quality foam ear seals and light weight add to overall comfort * Sleek, all-black design with ASA silver wings tastefully silk-screened on each earcup * Sturdy and reliable yet reasonably priced for maximum value * Lifetime warranty