The adapter works for headphones with 3.5 mm jack plugs, both 3-pin and 4-pin, and offers high-quality stereo sound quality. It is compatible with devices that have a USB-C connection, but support for microphone and headset function buttons is limited, which may be relevant for older iPhone headphones with a microphone.
Since iPhones usually use a Lightning connector, the adapter is not directly suitable for iPhones without USB-C, but rather for devices with USB-C. The adapter would generally be compatible with newer iPhone models with USB-C (from iPhone 15), but microphone functions may be limited.
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