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"Audio adaptor Sennheiser 4-pin male jack L-R-GND-MIC to 4-pin female jack L-R-MIC-GND - https://en-ae.sennheiser.com/35-mm-mini-jack-adaptor"
"Audio adaptor Sennheiser 4-pin male jack L-R-GND-MIC to 4-pin female jack L-R-M…
Sennheiser PCV 05
"Audio Adaptor Sennheiser 1male*3.5 mm 4-pin jack to 2 female*3.5 mm 3-pin jack …
Sennheiser PCV 07
"Audio adaptor Sennheiser for Mac 1male*3.5mm 4-pin jack to 2female*3.5mm 3-pin …