https://techcrunch.com/2017/11/20/google-promises-a-software-fix-for-the-pixel-2s-buzzing-phone-call-problem-in-the-coming-weeks/

Google’s hardware team can’t catch a break this year. In spite of solid reviews (us included), the company’s new Pixel 2 handsets have been plagued by glitches, including a buzzing sound heard in the ear piece during phone calls.

A company rep issued a short response to a lengthy thread about the problem on Google’s Pixel User Community board, noting that the company will start rolling out an over the air software update aimed at fixing the issue in “the coming weeks.”