A lightweight device known as goTenna mesh is a compact size handheld cellular antenna, easy to be used anywhere outside the mobile network coverage area.
It helps you to never lose connection. The goTenna mesh uses military grade mesh networking that spans nearly 5km. You can use it to send messages and share location without the need for call service. The device connects with other users nearby to form a localized cellular network.
The device is similar to a walkie talkie, but it has the the function to double or triple your range by relaying your messages through other users nearby.
The goTennas are sold in pairs. All you need to do is just pair your goTenna via Bluetooth with the app installed and then turn your iOS or Android device into an off-grid communication tool.
As more users enter the area, the signal strength increases. Don’t worry, the system is encrypted so that your message stay private.
goTenna Mesh costs $179 for a pair and is scheduled to ship soon. Get it from goTenna official site.