The CC 540 Binaural Headset from Sennheiser is a dual-sided headset with large ear caps. The CC 540 is designed to channel clear strong sound to both ears for high concentration levels during conversations. The noise-cancelling microphone is designed to filter out ambient noise. The 300° adjustable boom allows the microphone to be positioned for optimal speech clarity. This headset features a self-adjusting ball-mounted speaker capsule, which allows perfect fitting to the head. The ActiveGard technology is designed to protect you from acoustic shock and sudden sound surges. The CC 540's comfort pads in the headband and padded ear caps distribute pressure and ensure comfort even during an extended wearing period. This headset includes a carry bag, clothing clip, three colored identification clips, two leatherette ear pads, and a microphone windscreen.