GoTenna Lets You Send Messages Even When You Don’t Have Cell Service

If you’ve ever traveled abroad without purchasing coverage or got lost deep in the wild where cell service was scant, you’re going to appreciate goTenna. Using Bluetooth Low Energy, the device allows you to send messages and your GPS location to another phone that’s near a paired goTenna. It offers a range of up to around 50 miles and your phone or other device will need to be within 20 feet of the goTenna itself to use it, but if you’ve ever tried to send a message when your network was down or you’ve gone off the grid, you know how useful this could be.