High-attenuating shells with optimised acoustic design and excellent space for the ears for the best possible sound quality and comfort. * Microphone with effective noise compensation for clear and reliable communication. * Quick Positioning integrated microphone boom for easy handling. * Soft, wide, foam and fluid-filled ear cushions and individually sprung headband wires of stainless sprung steel provide an even and consistent distribution of pressure around the ears for the best possible comfort. * Standard J11 connection (Nexus TP-120). * Beam-mounted earphones that provide the least possible resonance and distortion for excellent sound reproduction even in very high-noise environments. * Numerous configurations. Overhead, neckband and helmet-attached versions to meet most users' requirements.