(2) single call. When using the two way radio to talk to each other, you need to hold down the call button on the two way radio to achieve the call. After the message is delivered, you can release the button and wait for the other person to answer. At this time, if the other party answers, we will hear the other party's reply from the two way radio.
In addition, pay attention to adjust the volume during the call to ensure that the conversation is clear and accurate;
(3) group call. Two way radios not only can two people talk to each other, but also can achieve group call. The use of group call is also the same as the use of two people. First of all, the two way radio will be turned on, and then the frequency of each two way radio involved will be adjusted to the same.