6 pin mini-DIN male (PS/2 STYLE) connector at the helmet-side cable.
Pinout for the Chatterbox in-helmet Noise Reducing (stereo) headset, as used with Chatterbox FRS X2 and GMRS X1 radios.
|1||- Spk||-||Speaker Ground|
|2||+ Mic||-||Microphone Positive|
|3||+ R.Spk||-||Right Speaker Positive|
|4||- Mic||-||Microphone Negative|
|5||+ L.Spk||-||Left Speaker Positive|
The above information was received from Chatterbox USA.
While building an adapter based on this information, I found that the “+ L.Spk” and “+ R.Spk” connections appear to be reversed from the above. In other words, “+ L.Spk” is pin 3 and “+ R.Spk” is pin 5. I will send this information to Chatterbox USA for their response. If others find that my observation is correct (L/R are reversed from what the chart says) then please post a comment in the discussion tab to that effect so I can update the chart (or update the chart directly and remove this note entirely.)