The goTenna is a smartphone accessory antenna that uses long-range radio waves to create a point-to-point messaging network. That means you can send texts to other goTenna users within a 6-10 mile radius, even in places where you have no cell service. Other standout features include shareable GPS locations and an emergency messaging feature that could be a real lifesaver for hikers and other outdoor enthusiasts should they get caught in a bad situation. The devices will sell in pairs for around $150.
This clever antenna keeps you in touch when you're off the grid.
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