NavAtlas Nb200 Behind-The-Head Style Headset The NavAtlas headset offers comfortable wearability, designed to rest effortlessly behind the user's neck. It is specifically built to function seamlessly with NavAtlas communication devices, ensuring smooth and reliable connectivity. Features: High fidelity stereo speakers Noise-cancelling smart microphone Flexible mic boom for better positioning for voice activation Compatible with Hcf4, Hcr16 and Hec10 to extend (sold separately) Large, easy-to-use volume control knob Deluxe ear pads Carbon fiber finish