Product Description Ideal for gamers the CS95 features a dynamic element constructed of neodymium iron boron magnet structures the deliver high sensitivity and reduced distortion for premium sound at all volume levels. Incorporating a frequency response of 30-16,000Hz, the CS95 delivers a full-range of sound that will bring your favorite games to life. Utilizing oxygen free copper voice coils for improved signal transmission and conduction, sound comes through loud and clear. The addition of the CS95 is equipped with electret, noise cancellation microphone for hands-free communication from your personal computer. Ideal for telephony, voice activated and voice recognition software and computer games with sound cards with built in bias supply*. Single sided listening keeps you connected with the outside world. One foam ear cushion create an open, hear-through sound, deliver maximum comfort and distribute the sound evenly over the ear surface for a balanced sound. A straight, single entry 8 foot cord allows for maximum movement by the user. Built to last, the CS95 is covered under Koss" Limited Lifetime Warranty - the only warranty of its kind in the stereophone industry. *Can be used with an external power source if sound card does not have built in bias supply