phone​

The G77 achieves a key technological integration: like a mobile phone, it connects to global public mobile networks via a SIM card, gaining a stable signal across vast distances, completely eliminating the distance and obstruction limitations of traditional walkie-talkies. At the same time, it retains the core advantages of a professional walkie-talkie-"one-button communication and group response." Personnel on duty do not need to search for contacts or wait for dialing; pressing the call button instantly sends instructions directly to the entire pre-set squad or command center, like making a "direct line" that is always online and never needs to be answered. This design, combining the coverage of a mobile phone with the operational efficiency of a walkie-talkie, gives security communications both the reliability of a mobile phone and the immediacy of tactical communication.