The CC 550 Binaural Headset from Sennheiser is an over-the-head, dual-sided headset with extra-large ear cups. The CC 550 is designed to channel clear strong sound to both ears to aid concentration during conversations. The noise-cancelling microphone is designed to filter out ambient noise. The 300° adjustable boom allows the microphone to be accurately positioned for optimal speech clarity. This headset features a self-adjusting ball-mounted speaker capsule, which allows proper fitting to the head. The ActiveGard technology is designed to protect you from acoustic shock and in the event of sudden sound surges. The comfort pads on the headband's inner side, and the padded ear cups distribute pressure and ensure comfort even during extended wearing time. This headset includes a carry bag, a clothing clip, three colored identification clips, two leatherette ear pads, and a microphone windscreen.