Customize media notifications and playback controls with the Media Session API
To let users know what's currently playing in their browser and control it without returning to the page that launched it, the Media Session API has been introduced.
web.dev François Beaufort
Chrome 81: Near Field Communications, Augmented Reality, and More
NFC a short-range wireless technology for transmitting small amounts of data, usually between a specialized NFC device and a reader.
blog.chromium.org Chrome Team