DESC: Labtec engineers designed the LVA-7330 ClearVoice Head Microphone with NCAT2 (Noise Cancelling and Amplification Technology, Version 2) to provide accurate audio input for speech recognition, voice command, internet communications, and all other PC multimedia applications. In addition, this ClearVoice product has been designed with your comfort in mind. Each product is ergonomically designed and is lightweight, padded and adjustable.