Cambridge Audio - Melomania P100 Over-ear Headphones with Active Noise CancellationOverview Crafted in London by Hi Fi engineers, P100 delivers immersive, high fidelity musical audio with Class A B amplification from 40mm drivers. With adaptive hybrid ANC and up to 100 hours of user replaceable battery life, it's designed for boundless listening. Feel your music, everywhere We believe exceptional sound should be a part of everyday life. Our new headphones take the incredible quality of our award winning audio systems on the go, so