The product description provided by the supplier is:

Airtext Plus solves the problem of staying connected electronically to business, friends, and family without the high cost of a traditional internet option. Airtext allows up to 16 passengers the ability to send and receive SMS messages anywhere in the world. Using the Iridium satellite network, we have designed a product that allows connectivity through your cell phone while on the airplane.

Airtext Plus also adds the ability for voice calls using the Airtext App. Iridium calls take a few extra seconds to connect, but once connected, act just like any other cell phone call. Simply select the “disconnect” button on the Airtext app or the “disconnect” button on the headset when the call is complete.

Airtext Plus also includes a Moving Map feature. The Airtext Map is a cabin moving map designed for passenger information and entertainment. Provides flight data from the Aircraft's navigation system to display location, destination, speed, altitude, time to destination, and more. Enjoy interactive pan and zoom functions—explore the globe. Very simple to use – Just Open the App!