CC 520 Over the head, binaural headset supplied with ultra noise cancelling microphone and Activegard protection technology. Features The CC 520 binaural headset offers powerful, precise sound to both ears for optimal understanding. The robust construction makes it perfect for any type of office or professional communication ActiveGardTM safeguards the user from the effects of an acoustic burst Self-adjusting ball-mounted speaker capsules allow perfect fitting to the head 300° adjustable microphone boom allows microphone to be positioned exactly for optimal speech clarity. 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 Delivery Includes Acoustic foam ear pads Carry bag Clothing clip Colored identification clips (3) Leatherette ear pads Microphone windscreen Technical Data Microphone Microphone Ultra noise canceling Frequency response 300 Hz - 3400 Hz Distortion Less than 1% Speakers Speaker impedance ~300 Ω Frequency response 300 Hz - 3400 Hz Sound pressure Max. 103 dB limited by ActiveGard Ear-cap size Regular ø 42 mm / 1.7 inch Cable length 1 m / 3.3 ft Kevlar®* reinforced Connector Easy Disconnect