https://www.theverge.com/circuitbreaker/2018/10/15/17978298/pixel-buds-google-translate-google-assistant-headphones

The Pixel Buds’ flagship feature, its ability to translate languages at the press of a button, appears to be coming to every pair of headphones that have Google Assistant built in, reports Droid-Life. The functionality was quietly announced via a change in the text of Google’s support page for the Pixel Buds, which now reads: “Google Translate is available on all Assistant-optimized headphones and Android phones.”

The feature, which was previously exclusive to Google’s own Pixel Buds, allows you to translate between 40 different languages. You can then use an Android handset as a speaker to translate your responses.