So how does Google Tone work? Tone is an extension for Chrome and once users install it from the Chrome Web app store, the blue tone button will appear next to each tab.
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Users then just have to click on the blue button, making sure that their computer's speakers are on full volume and another computer in the vicinity will pick up the sound and the URL will be displayed on the other user's Chrome browser.
The user who receives the link will then have an option of clicking that URL to open it. In short, Google Tone broadcasts a URL to any other machine within the range. Of course, the other machine needs to have the Tone extension on it to ensure that the sound is picked up.
According to an official Google blog post "Tone grew out of the idea that while digital communication methods like email and chat have made it infinitely easier, cheaper, and faster to share things with people across the globe, they've actually made it more complicated to share things with the people standing right next to you."
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Users should note that Tone is based on audio and that the speaker volume, mic sensitivity, will all impact Tone's reliability. To add Tone to your Chrome Browser, please click here.