ⓔ Share page urls over sound with the Google Tone Chrome Extension

I’ve mentioned in the past about using Pushbullet to send links, text and other information to your students. Yesterday, Google announced the Google Tone. This adds a new icon in the toolbar that when pressed, emits a series of tones that other browsers with the extension installed will hear. I’ve tried it out at home, and it works ok for two laptops, but I assume it would work even better with speakers or the sound reinforcement in a classroom.