The inReach Messenger is a small, rugged, lightweight satellite communicator that enables two-way text messaging even in areas with no cell phone coverage. The seamless communication keeps you in touch with loved ones seamlessly using smart switching Wi-FI, cellular and satellite connections (LTE & Wi-Fi requires phone connection. Device supports Satellite communication). Check in with contacts, using the device's preset Check-Ins and read/reply to messages that you receive on device or within the Garmin Messenger app. Interactive SOS by the Garmin IERCC. Scrolling alpha/numeric text entry for custom messaging communication during emergency situations directly from the device. Be Weather Aware with inReach Weather forecasts sent straight to device. TracBack allows you to find your way back to a last known location. Allows for safety charging to connect your messenger to your dead cell phone for a small charge to send a custom text message. (requires 3rd party compatible cable - sold separately). Garmin Eco-System pair your Messenger device to other compatible Garmin handhelds, marine or aviation equipment and wearables to trigger SOS and receive/send notifications. | Garmin inReach Messenger