[. . . ] CC520 Let's you concentrate Features regular sized padded ear caps which block out office noise and enhance comfort Ultra Noise Canceling blocks out a maximum of ambient noise, making your voice easier to understand Ideal for extended periods of heavy-duty use in a regular noise environment An active guard for your hearing The CC 520 binaural headset offers powerful, precise sound to both ears for optimal understanding. [. . . ] Teflon®* washer support increases positioning accuracy, stability and ensure optimal durability. Unique comfort pads in the headband distribute pressure on the top of the head to a greater surface area The ear caps are specially padded for remarkable comfort even during extended wearing time Binaural headset ensures maximum block out of background noise, increasing concentration and efficiency Technical data Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Omni-directional 300 Hz ­ 3400 Hz Less than 1% ~300 300 Hz ­ 3400 Hz Max. 103 dB limited by ActiveGardTM Ear-cap size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Regular ø 42 mm / 1. 7 inch Cable length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 m / 3. 3 ft Kevlar®* reinforced Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Easy Disconnect Accessories Included Acoustic foam ear pads Carry bag Clothing clip Colored identification clips (3) Leatherette ear pads Microphone windscreen *Teflon® and Kevlar® are trademarks of Dupont. Contact details [. . . ]