4-053 series :
The earphone connects to the PTT switch in which the microphone is hidden. The second wire extends from the PTT switch to the plug that connects to the two-way radio headphone jack.
For two-way radio beginners, please don///'//i/t put the earphone into or out of the radio when it is functioning.
- Two wires extend from PTT switch, one to the earphone and the other to the plug that connects to the headphone jack of two-way radio;
- Weight :25g;
This earpiece can provide several plugs: