Sennheiser CC550 Binaural Headset Ultra-Noise Canceling Mic product# S1-CC550 Over the head , binaural headset with extra-large ear caps supplied with ultra noise cancelling microphone and Activegard protection technology(Ear Caps do NOT surround ear).The CC 550 is our top-of-the-line binaural headset and offers powerful, precise sound to both ears for optimal understanding. Its durable construction makes it perfect for any type of office or professional communication. Key Feature ActiveGardTM safeguards the user from the effects of an acoustic burst Independent double-sided headband adjustment and 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 and specially padded ear caps distribute pressure and ensure 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 2-Yr Warranty