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Head into the woods without losing service with GoTenna (pictures)

This system creates a wireless network so you can chat when you're off the grid.

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Sarah Mitroff

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1 of 7 Josh Miller/CNET

This is GoTenna

Heading into the wilderness where there's no cell service? You need GoTenna. It creates a private wireless network you can use to send text messages and share your location with friends.

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2 of 7 Josh Miller/CNET

Antennas and radios

GoTenna uses special radios to send messages between the two devices. It connects to your phone via Bluetooth.

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Two-pack

GoTenna is sold in a two-pack, because you need one device per phone to communicate. GoTenna cannot connect to a regular wireless network, so you cannot use it to make calls or go online.

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Colorful strap

There's a strap on the back of each device that secures it to any bag or backpack. The strap comes in four colors: purple, orange, blue and green.

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Clip it

GoTenna recommends you strap the device to a bag, since it works better hands-free.

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Text away

With the GoTenna app, you can send messages and send your location to anyone else with a GoTenna nearby.

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Portable

GoTenna is no larger than a granola bar and is dead-simple to use. Just slide out the antenna to turn it on.

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