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4 pin 3.5mm (2.5mm) plug connector layout
4 pin 3.5mm (2.5mm) plug connector

 

Pin
Number
Pin
Name
Description (may be empty)
1 L_SPKR  Left audio speaker
2 R_SPKR  Right audio speaker
3 GND  Common Ground
4 MIC  Mic +
According to 3 reports in our database (3 positive and 0 negative) the Bose Mobile On-Ear Headset pinout should be correct.

Is this pinout
Bose Mobile On-Ear Headset visual pinout:click to enlarge
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