Tiantong satellite phone LeSat F1 supports a variety of communication modes, including full Netcom, Tiantong satellite, analog intercom, POC public network intercom and other functions. It can not only carry out Tiantong satellite communication but also carry out one-to-one single call or group call. The system is equipped with GPS and Beidou dual positioning, accurate positioning and faster star search. The screen is a 3.1-inch high-definition bright touch display.