For anyone who ventures beyond mobile network coverage, the Iridium-based Zoleo Global Satellite Communicator offers everything you need to stay connected and secure. With Zoleo, enjoy seamless global messaging that follows you in and out of mobile network coverage, and a personal safety system you can count on worldwide. Simply connect the lightweight, durable Zoleo device with the free app on your phone or tablet to enjoy two-way global messaging and a personal safety system. Feel safe on your adventures with no phone signal. Zoleo is the affordable accessory that extends your smartphone messaging coverage to everywhere on Earth and provides a safety system you can count on. An active subscription plan is required to transmit messages over the Iridium satellite network.