Labtec engineers designed the C-322 stereo headset/boom microphone with NCAT (Noise Canceling and Amplification Technology) to provide optimal voice input for voice command, Internet communications, multimedia, and interactive audio applications. This proprietary technology provides clear signal input through its unique ability to filter out background noise. PC voice access products have been designed with your comfort in mind. Each product is ergonomically designed and is lightweight, padded, and adjustable. NCAT products are designed to be compatible with virtually all sound cards.