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Explosion -proof talks refer to walkie -talkies that can work in an explosive gas environment. Different from civilian intercom, explosion -proof intercom does not refer to walkie -talkies that can resist explosions, but to talk about walkie -talkie that can work in an explosive gas environment.

Digital cluster intercoms are designed and manufactured according to digital cluster standards, which can access and adapt to digital walkie -talkies that work in digital cluster system and work under the network.

Digital cluster intercoms are designed and manufactured according to digital cluster standards, which can access and adapt to digital walkie -talkies that work in digital cluster system and work under the network.

The simulation intercom is an analog intercom with analog communication technology (also known as the traditional intercom), which is to modify the stored signal to the frequency of transmission of the intercom.

Digital walkiers are digital intercom using digital technology. Digital walkiers are digitized by voice signals, which should be transmitted in the form of digital coding, that is, all the modulation in the frequency of intercom machine transmission is numbers.

The nationwide unlimited distance can communicate with each other's new types of intercom to DU, which is different from traditional walkie -talkie. Its advantage is that it is interactive in all parts of the country, relying on the network of mobile phones to transmit voice. In principle, as long a......