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1. Handheld wireless intercom

It is a small size, light weight and low power wireless intercom. It is suitable for hand-held or bagged, easy for individuals to carry around, and can communicate on the go. In the series of wireless intercom products, the number and variety of handheld radio "intercom" is the largest, accounting for more than 80%.

2. Vehicle-mounted wireless intercom

This is a wireless intercom installed on vehicles, ships, airplanes and other vehicles, powered directly by the power supply on the vehicle, and uses the antenna on the vehicle. The main applications are transportation, production scheduling, security command, and its size is relatively large. In the wireless communication network, the communication distance through the relay station is longer, which is tens of kilometers. With the rapid development of transportation, especially the increase of private cars, the number of vehicles purchased by individuals will increase day by day.

3. Forwarding wireless intercom

The forwarding wireless intercom product is to forward the received signal of a certain frequency band directly through its own transmitter on other frequencies. The two groups of signals with different frequencies do not affect each other, that is, two groups of users are allowed to communicate on different frequencies. It has the characteristics of sending and receiving and working at the same time without interfering with each other. Its distinguishing feature is that it can effectively expand the communication range and capability of handsets, vehicle-mounted machines and fixed stations in the communication system to provide a larger coverage radius for the system.

4. Amateur wireless intercom

This wireless intercom is specially designed and produced for the use of radio amateurs. This type of wireless intercom can also be called "playing machine". For this amateur personal radio service, various countries have opened up dedicated frequency bands for use by amateur radio sports enthusiasts. Most of the users of professional wireless intercoms are used in the professional business of group teams. Therefore, professional wireless intercoms are characterized by simple and practical functions. In the design, there are a variety of communication interfaces for users to do secondary development. Most of the frequency range settings are programmed through the computer, and the user cannot change the frequency. The panel only displays the number of channels, and does not directly display the frequency point. In long-term work, its stability and reliability are high, and the operating temperature range is wide.

5. Analog intercoms and digital wireless intercoms

In terms of design technology, wireless intercoms can be divided into analog intercoms (also known as traditional intercoms) designed with analog communication technology, and digital intercoms designed with digital technology. The analog wireless intercom modulates the stored signal to the intercom's transmission frequency, while the digital wireless intercom digitizes the voice signal and transmits it in a digitally encoded form, that means all modulations on the intercom's transmission frequency are digital. Only a intercom that directly uses a digital signal processor is a digital intercom in the true sense, while a intercom that uses digital control signals is not a digital intercom.

Digital wireless intercoms have many advantages, the first is that they can make better use of spectrum resources. Similar to cellular digital technology, digital intercoms can load more users on a designated channel and improve spectrum utilization, which is a solution to frequency congestion and has long-term significance. The second is to improve the voice quality. Because digital communication technology has in-system error correction, compared with analog intercoms, it has better voice audio quality in a wider range of signal environments, and it will receive less audio noise and clearer sound. The last point is to improve voice and data integration, changing the weakness of control signals that decrease with communication distance. Compared with similar integrated analog voice and data systems, digital intercoms can provide better data processing and interface functions, so that more data applications can be integrated into the same two-way wireless communication base station structure, making voice and data service integration easier. Perfect and more convenient. These three characteristics make digital intercoms an inevitable trend in the future development of intercom technology.