
Cell phones are great for communication — so long as you have service. A new product, the goTenna, retails for $299 for a pair (pre-orders now are $149 a pair) and allows users to text one another with no cell service.
It works much like a walkie-talkie. To use it, you must have a partner (or multiple partners) who also have goTennas.

Once synced with your phone, the goTenna lets you send and receive texts (up to 160 characters) via a low-frequency two-watt radio wave. The cited range is up to 50 miles depending on terrain.

It lets users create networks with other individuals or specific groups of goTenna users. You can also “shout” a message to go out to everyone in range if an emergency arises. The caveat? Nobody will hear it if they don’t have a goTenna.
