An internet “walkie talkie” that’s useful in an emergency

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Zello is a free internet “walkie-talkie” app that’s very useful in regional emergencies such as a hurricane, fire or flood. In a few seconds of hearing your voice, an operator can guess what part of the country you’re from, if you’ve been drinking, what mood you’re in and whether you’re afraid or in distress. www.washingtonpost.com/news/innovations/wp/2017/08/31/the-cajun-navys-secret-weapon-for-saving-lives-the-human-voice/?

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