Marshall Monitor III A.N.C. Cream70 hours of playtime with ANC. 100 hours without. Monitor III A. N. C.'s extended wireless playtime, with or without active noise cancellation, keeps the music going strong. Be gone for days without having to recharge. Active noise cancelling and Transparency mode Feel like its just you and your favourite musician in the room. Monitor III A. N. C. continuously measures ambient noise to block out unwanted sounds. Or let the outside world back in with