ANC on jabra elite is only advertising thing. In reality do no, really do not exist!!! Plus ambient sound as plesent as they are, do not try them, as there are no option off. Perhaps malfunction of software or this jabra elite 75i. Ready to return it. I paid $66 plus tax, regardless returning it. P.S. you have to have 2 plugs or just right one on. Left alown is not working. ANC is not existent.