Audio-Technica Intro: Audio-Technica’s ATH-ANC9 Quietpoint headphones use proprietary active noise-cancelling technology to provide a comfortable listening experience in areas with high ambient noise.  The headphones feature two miniature microphones in each earpiece that pick up ambient noise (such as traffic, air-handling systems, etc.) and create a sound cancelling signal to effectively block the noise. Introduction … Continue reading audio Technica ATH-ANC9 QuietPoint Active Noise Cancelling Headphones review