My laptop has a combo headphone jack. When I plug a 4-pin headphone/earphone, it works fine, but when I plug in a 3-pin microphone, it doesn't work and no audio comes out.
![Amazon.com: Kakutoy Wired Kids Karaoke Microphone Toy Handheld Dynamic Microphone 3.5mm Microphone Function Jack Cable Compatible with Children Karaoke Singing Machine (Pink) : Musical Instruments Amazon.com: Kakutoy Wired Kids Karaoke Microphone Toy Handheld Dynamic Microphone 3.5mm Microphone Function Jack Cable Compatible with Children Karaoke Singing Machine (Pink) : Musical Instruments](https://m.media-amazon.com/images/I/51UDfFdRSeL.jpg)
Amazon.com: Kakutoy Wired Kids Karaoke Microphone Toy Handheld Dynamic Microphone 3.5mm Microphone Function Jack Cable Compatible with Children Karaoke Singing Machine (Pink) : Musical Instruments
![How to connect a microphone (that comes with headphones) with a 3.5mm jack to a speaker with a 6.35 input for microphones - Quora How to connect a microphone (that comes with headphones) with a 3.5mm jack to a speaker with a 6.35 input for microphones - Quora](https://qph.cf2.quoracdn.net/main-qimg-98a9b4ad8a2c8d01f69e144668aab1df.webp)