Amazon.sg:Customer reviews: UGREEN Headset Splitter Headphone Mic Y Adapter Cable, 3.5mm Audio Male to Separate Stereo Aux Female Jack & Microphone Female Jack Compatible for PS4, Xbox, Laptop, Phone, PC Gaming Headset (Black)
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This is not technically a splitter; it is an adapter. What most people don't understand is that, although the old recorder mic has the same 3.5 mm plug as the new headsets, it is a 3-conductor plug and uses the same contacts as headphones. Computers, phones and tablets that accept the new headsets use a 3.5 mm 4-conductor plug that has a separate contact for the mic. So, plugging an old mic into this type jack doesn't make contact with the mic conductor and the mic won't work. If you want to use an old headset that has separate 3.5 mm plugs for the mic and headphones, or use a separate mic and headphone or speaker with your device, you need this adapter. The inputs are marked for mic and headphone, and adapt the old mic plug to a 4-conductor plug.
I have my laptop for work mounted on a shelf under my desk to keep it out of the way. It was recently upgraded and the new laptop had a combined earphone/microphone jack which meant the microphone I had no my desk for Team calls wouldn't work. This meant I had to pull the laptop out and put it on the desk for Teams voice calls.
This adapter allows me to use my microphone again. It works with only the microphone plugged in and nothing in the earphone jack. I'm using the laptop speakers for audio.
The cables are very thin after they split so this might not hold up to a lot of travel but for my purpose (under my desk and never moving), it should be fine.
I needed it to have a external speaker and a microphone to my iPad which serves as the camera for the videoconferencing. My partners say the quality of sound is great and to have a real speaker as an output instead of the iPad in-built ones is a real treat - especially when you hear sometimes music over the conferencing call. Top!
I purchased two of these in early April, 2019. I expected one to be a spare in a travel kit. By the end of April, the first had stopped working. After a week of degrading sound quality and seemingly spotty connections, the sound stopped completely. I can only guess that the connections inside the adapters are poorly made or soldered.