goTenna Mesh | Two Off-Grid SMS & GPS Devices that pair with any phone | Chat, Send Texts & Location Information Without Cell Service or Wi-Fi | 24-Hour Battery | Works with Android & iOS
Best Product in Amazon.com
Stay connected in remote areas, share GPS locations, and send for help if you get into trouble
Avoid costly international plans by using goTenna to stay touch with your fellow travelers.
Create a reliable backup communication network for use during emergency situations when cell & wifi are down.
