Walkie-talkie is a kind of two-way mobile communication tool, which can make calls without any network support, without charge. It is suitable for relatively fixed and frequent calls.

　　There are three types of walkie-talkies: analog walkie-talkies, digital walkie-talkies and IP walkie-talkies.

　　This seems to be illustrated by the departments and units that currently purchase the largest number of walkie-talkie products.Public security, armed police, fire fighting, car friends, tourists, site construction, property management, dispatching, security are the main user groups of walkie-talkie products.

　　According to different user groups of different USES, the use of walkie-talkie products are not the same, mainly volume, erection and communication distance on the difference.