23 of 26 people found the following review helpful
Very nice, works with iPhone,
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This review is from: Startech.com 3.5mm 4 Pin to 2x 3 Pin 3.5mm Headset Splitter Adapter - M/F (Electronics)
Very nicely made product, works perfectly for what I wanted.
As there is not a wiring list on the product i've made one.
pin 1 jack <-> pin 1 headphones
pin 2 jack <-> pin 2 headphones
pin 3 jack <-> pin 3 headphones and pin 3 mic
pin 4 jack <-> pin 1 mic
pin 2 mic is unconnected.
where 1,2,3,4 is tip,ring,ring,sleeve & 1,2,3 is tip,ring,sleeve
The jack end just fits into an iPhone with an apple bumper case.
As the ring of the mic socket is unconnected if you plug in a stereo mic only the left channel will be used. Mono will work as normal.