Reliable Warranty - MillSO offers 24*7 friendly customer service, 18-month Extend Warranty & Lifetime Technical Support for our 3.5mm mic splitter, to ensure your pleg shopping experience. The oxygen-free copper core provides maximum conductivity and durability for the headset splitter adapter, and 24K gold-plated connectors and robust metal housing [starry gray] ensure optimum sound quality. Mic headphone splitter is made of soft and durable TPE material for maximum flexibility and withstands a variety of everyday connection needs and long-term use. The module moving design lets you adjust the cable's length easily. This 3.5mm headphone mic splitter supports listening to music, playing games, voice chatting, etc, and you can easily identify mic and audio functions with intuitive markings. NOTE: If you want to use an external microphone, please ensure its plug is a 3-pole TRS standard, otherwise the mic function will be disabled. MillSO headset adapter cable splits your 3.5mm 4-pole TRRS combo jack into two distinct ports - a TRS 3.5mm headphone jack and a TRS 3.5mm microphone jack, you can use a dual-plug gaming headset on a PC, laptop, smartphone, PS4, Xbox one, etc. NOTE: NOT for 2 sets of headphones.