1. Press the button and you can talk. Release the button and you can answer.

2. It is forbidden for wireless communication equipment to transmit when there is no antenna;

3. When charging, the handheld radio can't transmit, so turn off the power switch and recharge;

4. When you don't receive the call signal, don't ask and shout, and don't contact horizontally;

5. When the receiving and sending signals are unclear, the holder can change the position and move back and forth, left and right to find the best communication position; The moving car radio station can adopt the method of slowing down or stopping to enhance the sensitivity and improve the call effect;

6. It is forbidden to hold a radio within one meter of a high-power radio station, so as not to burn out the horn; When using the handheld radio, stay away from the computer to avoid interference;