3.5mm Y Splitter 2 Jack Male to 1 Female Headphone Mic Audio Adapter Cable UK

3.5mm 2 in 1 Headphone Microphone Audio Converter Splitter Adapter Y Cable Dual. Output 1: 3.5MM for headphone jack on computer/laptop. Output 2: 3MM for microphone jack on computer/laptop. Only headphones with a microphone can support voice function.

eBay