Noise cancellation maestros Wolfson Microelectronics have announced a pair of buds, designed for mobile phones. The Digital Silence DS-421D is fitted with microphones in each earbud and promises to last for 14 hours of audio playback on a single battery charge. The headset totes three different ANC profiles; a wide-frequency general, airplane for low-frequency engine hums and office for neatly sidestepping the daily workplace banter. Fortunately, the Gundam color scheme isn't final, but you can expect to see the finished articles in Spring 2012. Check the full specs in the press release below.