A new smartphone accessory called goTenna wants to fix a problem some users may experience from time to time, but probably not that often since carriers are focused on expanding into rural areas: lack of cellular coverage. goTenna is a tiny expensive antenna that can be used to send messages and location data between smartphones via radio waves when a regular cell connection is not available. But the problem with goTenna is that it’ll only work with other goTenna device owners. That’s likely why goTennas sell in pairs, so the users can give one of the portable antennas to friends and family.
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