The Koss CS95 Monaural Headset features oxygen-free copper voice coils for full-range sound delivery. It has a frequency response range between 30 and16,000 Hz and features a dynamic element made of neodymium iron boron magnet structures to deliver high-quality audio output at all volume levels. This PC gaming headset has one foam ear cushion over a comfortable full-coverage earpiece for comfort and improved sound. The electric noise-canceling microphone supports hands-free communication and delivers high-quality voice signal without distortions. A single-sided cord allows you to remain mobile. This noise-canceling microphone and headset can be used with phones, voice-activated or voice-recognition software, and computer games with sound cards.