The operation is simple and convenient, and it is clear at a glance. Users can also manually set the frequency on their own device. - 1 x Walkie Talkie. As long as there is Internet around (2G, 3G, 4G, 5G, WIFI), the global intercom can be realized, and the real integration of network and radio can be realized, so that there is no dead corner in the whole network.
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