With this radio earpiece that includes a state-of-the-art, in-line PTT microphone, it's easier than ever to use your radio device for hands-free communication – No distortion, attenuation or frequency jumps
Ear bud style earpiece with built-in line microphone;covert acoustic tube transmits more clear sound
The standard 2.5mm pin with electroplating anti-oxidation design, avoid the poor contact situation, effective to improve the life of the headset
The 1 pin 2.5mm plug earpiece compatible with motorola T100TP T402 T465 T480 T800 MS350R or Hytera TC310 TC320 TC1600 TC1688 two way radios. The earpiece can't compatible phone.