[. . . ] [. . . ] Teflon®* washer support increases positioning accuracy, stability and ensures optimal durability The headband has unique comfort pads and a specially padded, extra-large ear cap, which distribute pressure and ensure remarkable comfort even during extended wearing time Just like a normal telephone, sound is received through one ear, making usage easy to get accustomed to Ultra Noise Cancelling blocks out a maximum of ambient noise, making your voice easier to understand Ultra Noise Cancelling 300 Hz ­ 3400 Hz Less than 1% ~300 300 Hz ­ 3400 Hz Max. 103 dB limited by ActiveGardTM Ear-cap size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Regular ø 51 mm / 2. 1 inch Cable length . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 m / 3. 3 ft Kevlar®* reinforced Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] [. . . ]